commit-gnuradio
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Commit-gnuradio] [gnuradio] 05/24: digital: More examples to help debug


From: git
Subject: [Commit-gnuradio] [gnuradio] 05/24: digital: More examples to help debug packet blocks/code.
Date: Tue, 14 Jun 2016 00:40:56 +0000 (UTC)

This is an automated email from the git hooks/post-receive script.

jcorgan pushed a commit to branch packet2
in repository gnuradio.

commit 73f5575fae0ecebbc049ba52591babff11c097f2
Author: Tom Rondeau <address@hidden>
Date:   Mon Apr 4 11:20:07 2016 -0400

    digital: More examples to help debug packet blocks/code.
    
    Adds a new example for doing frame demux.
    
    Also makes packet_tx and packet_rx hier blocks; need to be moved to
    proper install location.
---
 ...packet_header.grc => correlate_access_code.grc} | 5025 ++++++++---------
 .../{parse_packet_header.grc => frame_demux.grc}   | 5148 +++++++++---------
 ...parse_packet_header.grc => packet_loopback.grc} | 5628 +++++++++++---------
 ..._packet_header.grc => packet_loopback_hier.grc} | 5218 +++++++-----------
 gr-digital/examples/packet/packet_rx.grc           | 1946 +++++++
 gr-digital/examples/packet/packet_tx.grc           | 1478 +++++
 gr-digital/examples/packet/parse_packet_header.grc | 5094 +++++++++---------
 7 files changed, 15723 insertions(+), 13814 deletions(-)

diff --git a/gr-digital/examples/packet/parse_packet_header.grc 
b/gr-digital/examples/packet/correlate_access_code.grc
similarity index 86%
copy from gr-digital/examples/packet/parse_packet_header.grc
copy to gr-digital/examples/packet/correlate_access_code.grc
index fa5fd53..3489f58 100644
--- a/gr-digital/examples/packet/parse_packet_header.grc
+++ b/gr-digital/examples/packet/correlate_access_code.grc
@@ -1,23 +1,23 @@
-<?xml version='1.0' encoding='ASCII'?>
-<?grc format='1' created='3.7.8'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
 <flow_graph>
   <timestamp>Thu Dec  4 14:34:25 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>parse_packet_header</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>window_size</key>
+      <value>2000,2000</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>category</key>
+      <value>Custom</value>
     </param>
     <param>
-      <key>author</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -25,774 +25,767 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>2000,2000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>correlate_access_code</value>
     </param>
     <param>
       <key>max_nouts</key>
       <value>0</value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
+      <key>qt_qss_theme</key>
       <value></value>
     </param>
     <param>
-      <key>thread_safe_setters</key>
+      <key>realtime_scheduling</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>run_options</key>
+      <value>prompt</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(8, 11)</value>
+      <key>run</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>sps</value>
+      <key>title</key>
+      <value></value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1064, 67)</value>
+      <value>(576, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>preamble</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1432, 3)</value>
+      <key>precision</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>rxmod</value>
-    </param>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1432, 67)</value>
+      <value>(736, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>nfilts</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>32</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1136, 67)</value>
+      <key>precision</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>rate</value>
-    </param>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>const_points</key>
+      <value>digital.psk_4()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1344, 995)</value>
+      <value>(896, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rep</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>4</value>
     </param>
     <param>
-      <key>value</key>
-      <value>3</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_4()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1248, 1059)</value>
+      <value>(1208, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>polys</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>eb</value>
     </param>
     <param>
       <key>value</key>
-      <value>[109, 79]</value>
+      <value>0.22</value>
     </param>
+  </block>
+  <block>
+    <key>variable_packet_formatter_default</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>access_code</key>
+      <value>digital.packet_utils.default_access_code</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1320, 1059)</value>
+      <value>(1064, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>k</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>7</value>
+      <value>formatter</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1272, 995)</value>
+      <value>(896, 131)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>eb</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>formatter</value>
     </param>
     <param>
       <key>value</key>
-      <value>0.22</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1208, 67)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>value</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>formatter</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(136, 843)</value>
     </param>
     <param>
-      <key>value</key>
-      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
+      <key>gui_hint</key>
+      <value>0,1,1,1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>id</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 131)</value>
+      <key>label</key>
+      <value>Freq. Offset</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_header</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>start</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 379)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>virtual_source</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_payload</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>33</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(360, 843)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 427)</value>
+      <key>gui_hint</key>
+      <value>2,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Mark Delay</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>stop</key>
+      <value>200</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rangeType</key>
+      <value>int</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
+  </block>
+  <block>
+    <key>variable_modulate_vector</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>data</key>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>[1]</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(736, 3)</value>
+      <value>(1432, 131)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>mod</key>
+      <value>rxmod</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_4()[1]</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_4()[0]</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>4</value>
+      <key>_coordinate</key>
+      <value>(1136, 67)</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>value</key>
+      <value>32</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 3)</value>
+      <value>(24, 843)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,0,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_HDR</value>
+      <value>noise</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Noise Amp</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(576, 3)</value>
+      <value>(1432, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_crc32_async_bb</key>
     <param>
       <key>id</key>
-      <value>digital_crc32_async_bb_1</value>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>check</key>
-      <value>False</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(1296, 131)</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>id</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(424, 91)</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
   </block>
   <block>
-    <key>fec_async_encoder</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>fec_async_encoder_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>encoder</key>
-      <value>enc</value>
+      <key>_coordinate</key>
+      <value>(1432, 67)</value>
     </param>
     <param>
-      <key>packed</key>
-      <value>True</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rev_unpack</key>
-      <value>False</value>
+      <key>id</key>
+      <value>rxmod</value>
     </param>
     <param>
-      <key>rev_pack</key>
-      <value>False</value>
+      <key>value</key>
+      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1064, 67)</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(80, 171)</value>
+      <key>id</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>value</key>
+      <value>2</value>
     </param>
   </block>
   <block>
-    <key>variable_repetition_decoder_def</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>_coordinate</key>
+      <value>(248, 843)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>gui_hint</key>
+      <value>0,2,1,1</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>label</key>
+      <value>Time Offset</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>prob</key>
-      <value>0.5</value>
+      <key>start</key>
+      <value>0.99</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>step</key>
+      <value>0.00001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>1.01</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 875)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>variable_cc_encoder_def</key>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>ndim</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>dim1</key>
-      <value>1</value>
+      <value>True</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_coordinate</key>
+      <value>(1296, 3)</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>id</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_debug</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -802,40 +795,28 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1416, 779)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_dummy_encoder_def</key>
-    <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(896, 593)</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>id</key>
+      <value>blocks_message_debug_0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_strobe</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -845,497 +826,544 @@
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1024, 779)</value>
+      <value>(24, 83)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_dummy_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>blocks_message_strobe_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>msg</key>
+      <value>pmt.intern("TEST")</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>period</key>
+      <value>500</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 859)</value>
+      <value>(336, 299)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>blocks_pdu_to_tagged_stream_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1216, 779)</value>
+      <value>(336, 227)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>blocks_pdu_to_tagged_stream_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_random_pdu</key>
     <param>
-      <key>dim2</key>
-      <value>4</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>mask</key>
+      <value>0xFF</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(208, 67)</value>
     </param>
     <param>
-      <key>state_end</key>
-      <value>-1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>id</key>
+      <value>blocks_random_pdu_0</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>length_modulo</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>maxsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1416, 955)</value>
+      <key>minsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable_modulate_vector</key>
+    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>id</key>
-      <value>modulated_sync_word</value>
+      <key>k</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>l</key>
+      <value>Const_HDR.bits_per_symbol()</value>
     </param>
     <param>
-      <key>mod</key>
-      <value>rxmod</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>data</key>
-      <value>preamble</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>[1]</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1432, 131)</value>
+      <value>(560, 219)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_strobe</key>
     <param>
       <key>id</key>
-      <value>blocks_message_strobe_0</value>
+      <value>blocks_repack_bits_bb_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>msg</key>
-      <value>pmt.intern("TEST")</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>period</key>
-      <value>1000</value>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>Const_PLD.bits_per_symbol()</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(24, 83)</value>
+      <value>(560, 291)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0_0</value>
+      <value>blocks_repack_bits_bb_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tag_debug</key>
+    <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>display</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 211)</value>
+      <value>(624, 515)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_tag_debug_0</value>
     </param>
     <param>
       <key>type</key>
-      <value>byte</value>
+      <value>complex</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>filter</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>name</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(336, 283)</value>
+      <value>(936, 417)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0</value>
+      <value>blocks_tagged_stream_multiply_length_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>c</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_HDR.bits_per_symbol()</value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_mux</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 203)</value>
+      <value>(216, 401)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1</value>
+      <value>blocks_tagged_stream_mux_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>map</key>
-      <value>Const_HDR.pre_diff_code()</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>ninputs</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>tag_preserve_head_pos</key>
       <value>0</value>
     </param>
     <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
+    <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(760, 211)</value>
+      <value>(1216, 523)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>chan_data</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
   </block>
   <block>
-    <key>blocks_repack_bits_bb</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>blocks_repack_bits_bb_0_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>_coordinate</key>
+      <value>(48, 571)</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_PLD.bits_per_symbol()</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>id</key>
+      <value>chan_rx_data</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>block_tags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -1343,330 +1371,288 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>epsilon</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 275)</value>
+      <value>(1224, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>map</key>
-      <value>Const_PLD.pre_diff_code()</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>noise_voltage</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(760, 283)</value>
+      <key>seed</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>taps</key>
+      <value>1.0</value>
     </param>
   </block>
   <block>
-    <key>virtual_sink</key>
+    <key>digital_burst_shaper_xx</key>
     <param>
-      <key>id</key>
-      <value>mod_header</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1120, 211)</value>
+      <value>(448, 379)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0_0</value>
+      <value>digital_burst_shaper_xx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>insert_phasing</key>
       <value>True</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>length_tag_name</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_PLD.points()</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>post_padding</key>
+      <value>20</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>pre_padding</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>window</key>
+      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>dimension</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 275)</value>
+      <value>(896, 219)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
       <value>digital_chunks_to_symbols_xx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
       <key>in_type</key>
       <value>byte</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_HDR.points()</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
+      <key>num_ports</key>
       <value>1</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>out_type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>symbol_table</key>
+      <value>Const_HDR.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>dimension</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 203)</value>
+      <value>(896, 291)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
       <key>id</key>
-      <value>mod_payload</value>
+      <value>digital_chunks_to_symbols_xx_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1120, 283)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_mux</key>
-    <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_mux_0</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>num_ports</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
+      <key>out_type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>ninputs</key>
-      <value>2</value>
-    </param>
-    <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>tag_preserve_head_pos</key>
-      <value>0</value>
+      <key>symbol_table</key>
+      <value>Const_PLD.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_corr_est_cc</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(216, 400)</value>
+      <value>(48, 619)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>tx_rrc_taps</value>
+      <value>digital_corr_est_cc_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>symbols</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>mark_delay</key>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>threshold</key>
+      <value>0.9</value>
     </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -1676,1353 +1662,1462 @@
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1296, 3)</value>
+      <value>(424, 91)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
       <key>id</key>
-      <value>qtgui_freq_sink_x_0_0</value>
+      <value>digital_crc32_async_bb_1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>check</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(760, 227)</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>id</key>
+      <value>digital_map_bb_1</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>map</key>
+      <value>Const_HDR.pre_diff_code()</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>showports</key>
+      <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>_coordinate</key>
+      <value>(760, 299)</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>id</key>
+      <value>digital_map_bb_1_0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>map</key>
+      <value>Const_PLD.pre_diff_code()</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_format_async</key>
     <param>
-      <key>label1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(80, 241)</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>digital_packet_format_async_1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label4</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
+      <key>_enabled</key>
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>filter_size</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(336, 555)</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>id</key>
+      <value>digital_pfb_clock_sync_xxx_0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>init_phase</key>
+      <value>nfilts/2</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>loop_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>max_dev</key>
+      <value>1.5</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>osps</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>taps</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>ccf</value>
     </param>
+  </block>
+  <block>
+    <key>digital_probe_mpsk_snr_est_c</key>
     <param>
-      <key>label8</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>alpha</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(624, 593)</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>digital_probe_mpsk_snr_est_c_0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>msg_nsamples</key>
+      <value>1000</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>2</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1120, 227)</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(728, 707)</value>
+      <key>id</key>
+      <value>mod_header</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
   </block>
   <block>
-    <key>digital_costas_loop_cc</key>
+    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>digital_costas_loop_cc_0_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>w</key>
-      <value>6.28/100.0</value>
+      <key>_coordinate</key>
+      <value>(1120, 299)</value>
     </param>
     <param>
-      <key>order</key>
-      <value>Const_HDR.arity()</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>use_snr</key>
-      <value>False</value>
+      <key>id</key>
+      <value>mod_payload</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>pfb_arb_resampler_xxx</key>
     <param>
-      <key>affinity</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(512, 584)</value>
+      <value>(680, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
       <key>id</key>
-      <value>qtgui_const_sink_x_0_0_0</value>
+      <value>pfb_arb_resampler_xxx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>nfilts</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>size</key>
-      <value>800</value>
+      <key>rrate</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>samp_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>atten</key>
+      <value>100</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>taps</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>type</key>
+      <value>ccf</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>_coordinate</key>
+      <value>(1480, 515)</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
       <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color1</key>
       <value>"blue"</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
       <key>marker1</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>color2</key>
+      <key>color10</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>label10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker10</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker2</key>
+      <key>style10</key>
       <value>0</value>
     </param>
     <param>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
+      <key>marker2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
       <key>color3</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
       <key>marker6</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>style8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color9</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
       <key>marker9</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 787)</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>rx_rrc_taps</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1296, 131)</value>
+      <value>(592, 771)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>pfb_arb_resampler_xxx</key>
     <param>
-      <key>id</key>
-      <value>pfb_arb_resampler_xxx_0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0_0_0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>rrate</key>
-      <value>sps</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>tx_rrc_taps</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>nfilts</key>
-      <value>nfilts</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>atten</key>
-      <value>100</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_delay</key>
+      <key>style1</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(680, 387)</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style10</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>channels_channel_model</key>
     <param>
-      <key>id</key>
-      <value>channels_channel_model_0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>noise_voltage</key>
-      <value>noise</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>epsilon</key>
-      <value>time_offset</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>block_tags</key>
-      <value>False</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker3</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style3</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1224, 395)</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>chan_data</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 523)</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>size</key>
-      <value>2500</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>marker7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>marker8</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>style8</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>size</key>
+      <value>800</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>bw</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(1480, 435)</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>style7</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>style9</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 355)</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
       <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
-    </param>
-    <param>
       <key>showports</key>
       <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>freqhalf</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
       <key>tr_level</key>
       <value>0.0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
       <key>tr_tag</key>
       <value>""</value>
     </param>
     <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Relative Gain</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-140</value>
+    </param>
+    <param>
+      <key>units</key>
+      <value>dB</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
       <key>ctrlpanel</key>
       <value>False</value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>fftsize</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(608, 691)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0_0</value>
+    </param>
+    <param>
       <key>legend</key>
       <value>False</value>
     </param>
     <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
       <key>label1</key>
       <value></value>
     </param>
@@ -3031,30 +3126,46 @@
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>alpha2</key>
+      <key>label2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width2</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
       <key>label3</key>
       <value></value>
     </param>
@@ -3063,12 +3174,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
       <key>label4</key>
@@ -3079,12 +3190,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
       <key>label5</key>
@@ -3095,12 +3206,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
       <key>label6</key>
@@ -3111,12 +3222,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
       <key>label7</key>
@@ -3127,12 +3238,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
       <key>label8</key>
@@ -3143,12 +3254,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
       <key>label9</key>
@@ -3159,473 +3270,415 @@
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
-    </param>
-    <param>
-      <key>alpha10</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 435)</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
       <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1480, 355)</value>
     </param>
     <param>
       <key>gui_hint</key>
-      <value>address@hidden</value>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
       <key>label1</key>
       <value></value>
     </param>
     <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width2</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
       <key>marker2</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color3</key>
-      <value>"red"</value>
+      <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
-      <value>"red"</value>
+      <value>"black"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
-      <value>"red"</value>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
-      <value>"red"</value>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
       <key>marker6</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
-      <value>"red"</value>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
-      <value>"red"</value>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color9</key>
-      <value>"red"</value>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
       <key>marker9</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>name</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>size</key>
+      <value>2500</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>srate</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>tr_delay</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1480, 515)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_multiply_length</key>
-    <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_multiply_length_0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>lengthtagname</key>
+      <key>tr_tag</key>
       <value>packet_len</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>c</key>
-      <value>sps</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(936, 416)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
       <key>ylabel</key>
@@ -3636,853 +3689,817 @@
       <value>""</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
-    </param>
-    <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
       <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>entags</key>
       <value>True</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>_coordinate</key>
+      <value>(48, 715)</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>tr_delay</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
       <key>label1</key>
       <value></value>
     </param>
     <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
       <value>"blue"</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>marker10</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
       <key>marker2</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color3</key>
       <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
       <value>"black"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
       <value>"cyan"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
       <value>"magenta"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
-    </param>
+      <key>label6</key>
+      <value></value>
+    </param>
     <param>
       <key>marker6</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
       <value>"yellow"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
       <value>"dark red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color9</key>
       <value>"dark green"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
       <key>marker9</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>size</key>
+      <value>1250</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_delay</key>
+      <value>50</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 627)</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>chan_rx_data</value>
+      <key>tr_tag</key>
+      <value>corr_est</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Correlation</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 571)</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>ymax</key>
+      <value>150</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-150</value>
     </param>
   </block>
   <block>
-    <key>digital_pfb_clock_sync_xxx</key>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>digital_pfb_clock_sync_xxx_0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>loop_bw</key>
-      <value>6.28/100.0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>rx_rrc_taps</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>nfilts</value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
-      <key>init_phase</key>
-      <value>nfilts/2</value>
+      <key>_coordinate</key>
+      <value>(576, 835)</value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>1.5</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>osps</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(280, 579)</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>marker1</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0_0</value>
+      <key>style1</key>
+      <value>3</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Correlation</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>srate</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-150</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>150</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,0,1,1</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>50</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>size</key>
+      <value>125</value>
     </param>
     <param>
-      <key>width7</key>
+      <key>srate</key>
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>tr_delay</key>
+      <value>5</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>"time_est"</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>ymax</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-2</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>_coordinate</key>
+      <value>(16, 379)</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>id</key>
+      <value>rx_mod_header</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
     <param>
-      <key>label10</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>_coordinate</key>
+      <value>(16, 427)</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>id</key>
+      <value>rx_mod_payload</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(48, 715)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_constellation_decoder_cb</key>
-    <param>
-      <key>id</key>
-      <value>digital_constellation_decoder_cb_0</value>
-    </param>
-    <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>constellation</key>
-      <value>Const_HDR</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(24, 971)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 579)</value>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
     <param>
       <key>id</key>
       <value>tab0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
       <key>label0</key>
       <value>Time</value>
     </param>
@@ -4491,38 +4508,6 @@
       <value>Freq.</value>
     </param>
     <param>
-      <key>label2</key>
-      <value>Const.</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value>Tab 3</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value>Tab 4</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value>Tab 5</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value>Tab 8</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value>Tab 9</value>
-    </param>
-    <param>
       <key>label10</key>
       <value>Tab 10</value>
     </param>
@@ -4563,116 +4548,6 @@
       <value>Tab 19</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,1,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(488, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>freq_offset</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Freq. Offset</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,1,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(600, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
-    <param>
-      <key>id</key>
-      <value>tab1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>label0</key>
-      <value>Time</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value>Freq.</value>
-    </param>
-    <param>
       <key>label2</key>
       <value>Const.</value>
     </param>
@@ -4705,680 +4580,142 @@
       <value>Tab 9</value>
     </param>
     <param>
-      <key>label10</key>
-      <value>Tab 10</value>
-    </param>
-    <param>
-      <key>label11</key>
-      <value>Tab 11</value>
-    </param>
-    <param>
-      <key>label12</key>
-      <value>Tab 12</value>
-    </param>
-    <param>
-      <key>label13</key>
-      <value>Tab 13</value>
-    </param>
-    <param>
-      <key>label14</key>
-      <value>Tab 14</value>
-    </param>
-    <param>
-      <key>label15</key>
-      <value>Tab 15</value>
-    </param>
-    <param>
-      <key>label16</key>
-      <value>Tab 16</value>
-    </param>
-    <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
-    </param>
-    <param>
-      <key>label19</key>
-      <value>Tab 19</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>1,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(624, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <block>
-    <key>blocks_tag_debug</key>
-    <param>
-      <key>id</key>
-      <value>blocks_tag_debug_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value></value>
-    </param>
-    <param>
-      <key>filter</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>num_inputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>display</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(520, 667)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_corr_est_cc</key>
-    <param>
-      <key>id</key>
-      <value>digital_corr_est_cc_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>symbols</key>
-      <value>modulated_sync_word</value>
-    </param>
-    <param>
-      <key>sps</key>
-      <value>sps</value>
-    </param>
-    <param>
-      <key>mark_delay</key>
-      <value>mark_delay</value>
-    </param>
-    <param>
-      <key>threshold</key>
-      <value>0.9</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(48, 619)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>time_offset</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Time Offset</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0.99</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>1.01</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.00001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(712, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>noise</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Noise Amp</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>5</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,0,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(488, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_random_pdu</key>
-    <param>
-      <key>id</key>
-      <value>blocks_random_pdu_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>minsize</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>maxsize</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>mask</key>
-      <value>0xFF</value>
-    </param>
-    <param>
-      <key>length_modulo</key>
-      <value>2</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(208, 67)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_packet_formatter_default</key>
-    <param>
-      <key>id</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>access_code</key>
-      <value>digital.packet_utils.default_access_code</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1064, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>mark_delay</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Mark Delay</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>int</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>33</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>2,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(824, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_packet_format_async</key>
-    <param>
-      <key>id</key>
-      <value>digital_packet_format_async_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>formatter</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(80, 232)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_burst_shaper_xx</key>
-    <param>
-      <key>id</key>
-      <value>digital_burst_shaper_xx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>window</key>
-      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
-    </param>
-    <param>
-      <key>pre_padding</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>post_padding</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>insert_phasing</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>length_tag_name</key>
-      <value>packet_len</value>
-    </param>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(160, 971)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(448, 379)</value>
+      <key>gui_hint</key>
+      <value>1,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_parse_x</key>
     <param>
       <key>id</key>
-      <value>digital_packet_parse_x_0</value>
+      <value>tab1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>type</key>
-      <value>b</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0</value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(952, 571)</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_debug</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_debug_0_0_0</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1184, 584)</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label7</key>
+      <value>Tab 7</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value>Tab 8</value>
+    </param>
+    <param>
+      <key>label9</key>
+      <value>Tab 9</value>
+    </param>
+    <param>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
-    <source_key>payload</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
-    <source_key>header</source_key>
-    <sink_key>pdus</sink_key>
+    <source_block_id>blocks_message_strobe_0</source_block_id>
+    <sink_block_id>blocks_random_pdu_0</sink_block_id>
+    <source_key>strobe</source_key>
+    <sink_key>generate</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_header</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_payload</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_crc32_async_bb_1</source_block_id>
-    <sink_block_id>fec_async_encoder_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>blocks_random_pdu_0</source_block_id>
@@ -5387,87 +4724,81 @@
     <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_message_strobe_0</source_block_id>
-    <sink_block_id>blocks_random_pdu_0</sink_block_id>
-    <source_key>strobe</source_key>
-    <sink_key>generate</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>fec_async_encoder_0</source_block_id>
-    <sink_block_id>digital_packet_format_async_1</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
+    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>chan_rx_data</source_block_id>
-    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
+    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
+    <sink_block_id>digital_map_bb_1_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
+    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
-    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_block_id>chan_rx_data</source_block_id>
+    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>chan_data</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1_0</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
-    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
-    <sink_block_id>mod_payload</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
-    <sink_block_id>mod_header</sink_block_id>
+    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
+    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
-    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
+    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
+    <sink_block_id>mod_header</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
-    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
+    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
+    <sink_block_id>mod_payload</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
@@ -5477,87 +4808,87 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_crc32_async_bb_1</source_block_id>
+    <sink_block_id>digital_packet_format_async_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <source_block_id>digital_map_bb_1</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <source_block_id>digital_map_bb_1_0</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
+    <source_key>header</source_key>
+    <sink_key>pdus</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
-    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
+    <source_key>payload</source_key>
+    <sink_key>pdus</sink_key>
   </connection>
   <connection>
-    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>blocks_tag_debug_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
-    <sink_block_id>channels_channel_model_0</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>digital_probe_mpsk_snr_est_c_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>chan_data</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_probe_mpsk_snr_est_c_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0</sink_block_id>
+    <source_key>snr</source_key>
+    <sink_key>print</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
-    <source_key>1</source_key>
+    <source_block_id>rx_mod_header</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_packet_parse_x_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
-    <source_key>info</source_key>
-    <sink_key>print</sink_key>
+    <source_block_id>rx_mod_payload</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
   </connection>
 </flow_graph>
diff --git a/gr-digital/examples/packet/parse_packet_header.grc 
b/gr-digital/examples/packet/frame_demux.grc
similarity index 92%
copy from gr-digital/examples/packet/parse_packet_header.grc
copy to gr-digital/examples/packet/frame_demux.grc
index fa5fd53..956a8b9 100644
--- a/gr-digital/examples/packet/parse_packet_header.grc
+++ b/gr-digital/examples/packet/frame_demux.grc
@@ -1,23 +1,23 @@
-<?xml version='1.0' encoding='ASCII'?>
-<?grc format='1' created='3.7.8'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
 <flow_graph>
   <timestamp>Thu Dec  4 14:34:25 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>parse_packet_header</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>window_size</key>
+      <value>2000,2000</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>category</key>
+      <value>Custom</value>
     </param>
     <param>
-      <key>author</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -25,774 +25,767 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>2000,2000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>frame_demux</value>
     </param>
     <param>
       <key>max_nouts</key>
       <value>0</value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
+      <key>qt_qss_theme</key>
       <value></value>
     </param>
     <param>
-      <key>thread_safe_setters</key>
+      <key>realtime_scheduling</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>run_options</key>
+      <value>prompt</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(8, 11)</value>
+      <key>run</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>sps</value>
+      <key>title</key>
+      <value></value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1064, 67)</value>
+      <value>(576, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>preamble</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1432, 3)</value>
+      <key>precision</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>rxmod</value>
-    </param>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1432, 67)</value>
+      <value>(736, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>nfilts</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>32</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1136, 67)</value>
+      <key>precision</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>rate</value>
-    </param>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>const_points</key>
+      <value>digital.psk_4()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1344, 995)</value>
+      <value>(896, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rep</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>4</value>
     </param>
     <param>
-      <key>value</key>
-      <value>3</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_4()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1248, 1059)</value>
+      <value>(1208, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>polys</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>eb</value>
     </param>
     <param>
       <key>value</key>
-      <value>[109, 79]</value>
+      <value>0.22</value>
     </param>
+  </block>
+  <block>
+    <key>variable_packet_formatter_default</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>access_code</key>
+      <value>digital.packet_utils.default_access_code</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1320, 1059)</value>
+      <value>(1064, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>k</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>7</value>
+      <value>formatter</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1272, 995)</value>
+      <value>(896, 131)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>eb</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>formatter</value>
     </param>
     <param>
       <key>value</key>
-      <value>0.22</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1208, 67)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>value</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>formatter</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(136, 843)</value>
     </param>
     <param>
-      <key>value</key>
-      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
+      <key>gui_hint</key>
+      <value>0,1,1,1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>id</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 131)</value>
+      <key>label</key>
+      <value>Freq. Offset</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_header</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>start</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 379)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>virtual_source</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_payload</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>33</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(360, 843)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 427)</value>
+      <key>gui_hint</key>
+      <value>2,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Mark Delay</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>stop</key>
+      <value>200</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rangeType</key>
+      <value>int</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
+  </block>
+  <block>
+    <key>variable_modulate_vector</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>data</key>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>[1]</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(736, 3)</value>
+      <value>(1432, 131)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>mod</key>
+      <value>rxmod</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_4()[1]</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_4()[0]</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>4</value>
+      <key>_coordinate</key>
+      <value>(1136, 67)</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>value</key>
+      <value>32</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 3)</value>
+      <value>(24, 843)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,0,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_HDR</value>
+      <value>noise</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Noise Amp</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(576, 3)</value>
+      <value>(1432, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_crc32_async_bb</key>
     <param>
       <key>id</key>
-      <value>digital_crc32_async_bb_1</value>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>check</key>
-      <value>False</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(1296, 131)</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>id</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(424, 91)</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
   </block>
   <block>
-    <key>fec_async_encoder</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>fec_async_encoder_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>encoder</key>
-      <value>enc</value>
+      <key>_coordinate</key>
+      <value>(1432, 67)</value>
     </param>
     <param>
-      <key>packed</key>
-      <value>True</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rev_unpack</key>
-      <value>False</value>
+      <key>id</key>
+      <value>rxmod</value>
     </param>
     <param>
-      <key>rev_pack</key>
-      <value>False</value>
+      <key>value</key>
+      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1064, 67)</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(80, 171)</value>
+      <key>id</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>value</key>
+      <value>2</value>
     </param>
   </block>
   <block>
-    <key>variable_repetition_decoder_def</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>_coordinate</key>
+      <value>(248, 843)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>gui_hint</key>
+      <value>0,2,1,1</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>label</key>
+      <value>Time Offset</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>prob</key>
-      <value>0.5</value>
+      <key>start</key>
+      <value>0.99</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>step</key>
+      <value>0.00001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>1.01</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 875)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>variable_cc_encoder_def</key>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>ndim</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>dim1</key>
-      <value>1</value>
+      <value>True</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_coordinate</key>
+      <value>(1296, 3)</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>id</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_debug</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -802,669 +795,681 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1416, 779)</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>_enabled</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_dummy_encoder_def</key>
-    <param>
-      <key>id</key>
-      <value>enc</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>_coordinate</key>
+      <value>(1616, 729)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>blocks_message_debug_0_0_0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_strobe</key>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 779)</value>
+      <value>(24, 83)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_dummy_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>blocks_message_strobe_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>msg</key>
+      <value>pmt.intern("TEST")</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>period</key>
+      <value>500</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 859)</value>
+      <value>(336, 299)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>blocks_pdu_to_tagged_stream_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1216, 779)</value>
+      <value>(336, 227)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>blocks_pdu_to_tagged_stream_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_random_pdu</key>
     <param>
-      <key>dim2</key>
-      <value>4</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>mask</key>
+      <value>0xFF</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(208, 67)</value>
     </param>
     <param>
-      <key>state_end</key>
-      <value>-1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>id</key>
+      <value>blocks_random_pdu_0</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>length_modulo</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>maxsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1416, 955)</value>
+      <key>minsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable_modulate_vector</key>
+    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>id</key>
-      <value>modulated_sync_word</value>
+      <key>k</key>
+      <value>8</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>l</key>
+      <value>Const_HDR.bits_per_symbol()</value>
     </param>
     <param>
-      <key>mod</key>
-      <value>rxmod</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>data</key>
-      <value>preamble</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>[1]</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1432, 131)</value>
+      <value>(560, 219)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_strobe</key>
     <param>
       <key>id</key>
-      <value>blocks_message_strobe_0</value>
+      <value>blocks_repack_bits_bb_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>msg</key>
-      <value>pmt.intern("TEST")</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>period</key>
-      <value>1000</value>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>Const_PLD.bits_per_symbol()</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(24, 83)</value>
+      <value>(560, 291)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0_0</value>
+      <value>blocks_repack_bits_bb_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>Const_PLD.bits_per_symbol()</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>8</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 211)</value>
+      <value>(976, 827)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0</value>
+      <value>blocks_repack_bits_bb_0_1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>True</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tag_debug</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>display</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 283)</value>
+      <value>(1072, 499)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_tag_debug_0</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_HDR.bits_per_symbol()</value>
+      <key>filter</key>
+      <value>""</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>name</key>
+      <value></value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_multiply_length</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 203)</value>
+      <value>(936, 417)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1</value>
+      <value>blocks_tagged_stream_multiply_length_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_HDR.pre_diff_code()</value>
+      <key>c</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_mux</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(760, 211)</value>
+      <value>(216, 401)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0_0</value>
+      <value>blocks_tagged_stream_mux_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_PLD.bits_per_symbol()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>ninputs</key>
+      <value>2</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>tag_preserve_head_pos</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_to_pdu</key>
     <param>
-      <key>affinity</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 275)</value>
+      <value>(1168, 835)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>map</key>
-      <value>Const_PLD.pre_diff_code()</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <value>blocks_tagged_stream_to_pdu_0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>tag</key>
+      <value>"payload bits"</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(760, 283)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
   </block>
   <block>
     <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>mod_header</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>_coordinate</key>
+      <value>(1224, 515)</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 211)</value>
+      <key>id</key>
+      <value>chan_data</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
   </block>
   <block>
-    <key>digital_chunks_to_symbols_xx</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>_coordinate</key>
+      <value>(48, 571)</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_PLD.points()</value>
+      <key>id</key>
+      <value>chan_rx_data</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
+    </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>block_tags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -1472,201 +1477,174 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>epsilon</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 275)</value>
+      <value>(1224, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_HDR.points()</value>
+      <key>noise_voltage</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>seed</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>taps</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_burst_shaper_xx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 203)</value>
+      <value>(448, 379)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
       <key>id</key>
-      <value>mod_payload</value>
+      <value>digital_burst_shaper_xx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>insert_phasing</key>
       <value>True</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>length_tag_name</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 283)</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>post_padding</key>
+      <value>20</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_mux</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_mux_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>pre_padding</key>
+      <value>20</value>
     </param>
     <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>ninputs</key>
-      <value>2</value>
-    </param>
-    <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>tag_preserve_head_pos</key>
-      <value>0</value>
+      <key>window</key>
+      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>dimension</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(216, 400)</value>
+      <value>(896, 219)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>tx_rrc_taps</value>
+      <value>digital_chunks_to_symbols_xx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>num_ports</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>out_type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>symbol_table</key>
+      <value>Const_HDR.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -1676,1495 +1654,1554 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0_0</value>
+      <key>dimension</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(896, 291)</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0_0</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>fc</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>bw</key>
+      <key>num_ports</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>out_type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>symbol_table</key>
+      <value>Const_PLD.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>constellation</key>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_coordinate</key>
+      <value>(1072, 603)</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>id</key>
+      <value>digital_constellation_decoder_cb_0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>constellation</key>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>_coordinate</key>
+      <value>(976, 723)</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_constellation_decoder_cb_0_0</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_corr_est_cc</key>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label3</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(48, 619)</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_corr_est_cc_0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>symbols</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>mark_delay</key>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>threshold</key>
+      <value>0.9</value>
     </param>
+  </block>
+  <block>
+    <key>digital_costas_loop_cc</key>
     <param>
-      <key>label6</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
-    </param>
-    <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>_coordinate</key>
+      <value>(504, 585)</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_costas_loop_cc_0_0</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>w</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>order</key>
+      <value>Const_HDR.arity()</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>use_snr</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label10</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>_enabled</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>_coordinate</key>
+      <value>(1400, 835)</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_crc32_async_bb_0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>check</key>
+      <value>True</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(728, 707)</value>
+      <value>(424, 91)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_costas_loop_cc</key>
     <param>
       <key>id</key>
-      <value>digital_costas_loop_cc_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>digital_crc32_async_bb_1</value>
     </param>
     <param>
-      <key>w</key>
-      <value>6.28/100.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>order</key>
-      <value>Const_HDR.arity()</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>use_snr</key>
+      <key>check</key>
       <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_header_payload_demux</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(512, 584)</value>
+      <value>(712, 571)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0_0_0</value>
+      <key>guard_interval</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>header_len</key>
+      <value>formatter.header_nbits()</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_header_payload_demux_0</value>
     </param>
     <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>items_per_symbol</key>
+      <value>1</value>
     </param>
     <param>
-      <key>size</key>
-      <value>800</value>
+      <key>length_tag_key</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>output_symbols</key>
+      <value>True</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>samp_rate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>special_tags</key>
+      <value>""</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>timing_tag_key</key>
+      <value>"rx_time"</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>trigger_tag_key</key>
+      <value>"time_est"</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>_coordinate</key>
+      <value>(760, 227)</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>id</key>
+      <value>digital_map_bb_1</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>map</key>
+      <value>Const_HDR.pre_diff_code()</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(760, 299)</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>digital_map_bb_1_0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>map</key>
+      <value>Const_PLD.pre_diff_code()</value>
     </param>
     <param>
-      <key>marker2</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_format_async</key>
     <param>
-      <key>label3</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(80, 241)</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_packet_format_async_1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_parse_x</key>
     <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1360, 715)</value>
     </param>
     <param>
-      <key>marker5</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>digital_packet_parse_x_0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>threshold</key>
+      <value>3</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>type</key>
+      <value>b</value>
     </param>
+  </block>
+  <block>
+    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>filter_size</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(280, 579)</value>
     </param>
     <param>
-      <key>marker7</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>digital_pfb_clock_sync_xxx_0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>init_phase</key>
+      <value>nfilts/2</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>loop_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>max_dev</key>
+      <value>1.5</value>
     </param>
     <param>
-      <key>marker8</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>osps</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>rx_rrc_taps</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>ccf</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>_coordinate</key>
+      <value>(1120, 227)</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>id</key>
+      <value>mod_header</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
-      <key>label10</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>_coordinate</key>
+      <value>(1120, 299)</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>0</value>
+      <key>id</key>
+      <value>mod_payload</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>pfb_arb_resampler_xxx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(728, 787)</value>
+      <value>(680, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>rx_rrc_taps</value>
+      <value>pfb_arb_resampler_xxx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
+      <key>nfilts</key>
       <value>nfilts</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>rrate</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>samp_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>atten</key>
+      <value>100</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>taps</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>type</key>
+      <value>ccf</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 131)</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>pfb_arb_resampler_xxx</key>
     <param>
-      <key>id</key>
-      <value>pfb_arb_resampler_xxx_0</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
-    </param>
-    <param>
-      <key>rrate</key>
-      <value>sps</value>
-    </param>
-    <param>
-      <key>taps</key>
-      <value>tx_rrc_taps</value>
+      <key>_coordinate</key>
+      <value>(1480, 515)</value>
     </param>
     <param>
-      <key>nfilts</key>
-      <value>nfilts</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>atten</key>
-      <value>100</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_delay</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(680, 387)</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style1</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>channels_channel_model</key>
     <param>
-      <key>id</key>
-      <value>channels_channel_model_0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>noise_voltage</key>
-      <value>noise</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>epsilon</key>
-      <value>time_offset</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>1.0</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>block_tags</key>
-      <value>False</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker2</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style2</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1224, 395)</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>chan_data</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 523)</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>size</key>
-      <value>2500</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>marker7</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>style7</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(600, 763)</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0_0_0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style7</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 355)</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>average</key>
+      <key>alpha7</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>marker8</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>style8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>color9</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width2</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>size</key>
+      <value>800</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha5</key>
+      <key>average</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>bw</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(1480, 435)</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
+    </param>
+    <param>
+      <key>legend</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
       <key>label10</key>
@@ -3175,1396 +3212,1220 @@
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 435)</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width2</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker2</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha4</key>
+      <key>average</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width5</key>
+      <key>bw</key>
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>style5</key>
+      <key>fc</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(632, 827)</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0_0</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>0</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha9</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 515)</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_multiply_length_0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>c</key>
-      <value>sps</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(936, 416)</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>freqhalf</key>
       <value>True</value>
     </param>
     <param>
+      <key>tr_chan</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
       <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>entags</key>
       <value>True</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>_coordinate</key>
+      <value>(1480, 355)</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
       <key>label1</key>
       <value></value>
     </param>
     <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
       <value>"blue"</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>marker10</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
       <key>marker2</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color3</key>
       <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
       <value>"black"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
       <value>"cyan"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
       <value>"magenta"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
       <key>marker6</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
       <value>"yellow"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
       <value>"dark red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color9</key>
       <value>"dark green"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
       <key>marker9</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>size</key>
+      <value>2500</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 627)</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>chan_rx_data</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 571)</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>ymax</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
   </block>
   <block>
-    <key>digital_pfb_clock_sync_xxx</key>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>digital_pfb_clock_sync_xxx_0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>loop_bw</key>
-      <value>6.28/100.0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>rx_rrc_taps</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>nfilts</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>init_phase</key>
-      <value>nfilts/2</value>
+      <key>_coordinate</key>
+      <value>(664, 907)</value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>1.5</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>osps</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(280, 579)</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0_0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Correlation</value>
-    </param>
-    <param>
-      <key>yunit</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>size</key>
-      <value>1250</value>
-    </param>
-    <param>
-      <key>srate</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>grid</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>autoscale</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-150</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>150</value>
-    </param>
-    <param>
-      <key>nconnections</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>entags</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>1,0,1,1</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>50</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
-    </param>
-    <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>legend</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value></value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>width1</key>
+      <key>style10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>style1</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha1</key>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
       <key>marker2</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color3</key>
       <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
       <value>"black"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
       <value>"cyan"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
       <value>"magenta"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
       <key>marker6</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
       <value>"yellow"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
       <value>"dark red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color9</key>
       <value>"dark green"</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
       <key>marker9</key>
       <value>-1</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>size</key>
+      <value>125</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(48, 715)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_constellation_decoder_cb</key>
-    <param>
-      <key>id</key>
-      <value>digital_constellation_decoder_cb_0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>constellation</key>
-      <value>Const_HDR</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 579)</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
   </block>
   <block>
-    <key>qtgui_tab_widget</key>
-    <param>
-      <key>id</key>
-      <value>tab0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>label0</key>
-      <value>Time</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value>Freq.</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value>Const.</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value>Tab 3</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value>Tab 4</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value>Tab 5</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value>Tab 8</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value>Tab 9</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value>Tab 10</value>
-    </param>
-    <param>
-      <key>label11</key>
-      <value>Tab 11</value>
-    </param>
-    <param>
-      <key>label12</key>
-      <value>Tab 12</value>
-    </param>
-    <param>
-      <key>label13</key>
-      <value>Tab 13</value>
-    </param>
-    <param>
-      <key>label14</key>
-      <value>Tab 14</value>
-    </param>
-    <param>
-      <key>label15</key>
-      <value>Tab 15</value>
-    </param>
-    <param>
-      <key>label16</key>
-      <value>Tab 16</value>
-    </param>
-    <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
-    </param>
-    <param>
-      <key>label19</key>
-      <value>Tab 19</value>
-    </param>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>gui_hint</key>
-      <value>1,1,1,1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
       <key>alias</key>
@@ -4575,576 +4436,406 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>freq_offset</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Freq. Offset</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,1,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(600, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
-    <param>
-      <key>id</key>
-      <value>tab1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>label0</key>
-      <value>Time</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value>Freq.</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value>Const.</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value>Tab 3</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value>Tab 4</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value>Tab 5</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value>Tab 8</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value>Tab 9</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value>Tab 10</value>
-    </param>
-    <param>
-      <key>label11</key>
-      <value>Tab 11</value>
-    </param>
-    <param>
-      <key>label12</key>
-      <value>Tab 12</value>
-    </param>
-    <param>
-      <key>label13</key>
-      <value>Tab 13</value>
-    </param>
-    <param>
-      <key>label14</key>
-      <value>Tab 14</value>
-    </param>
-    <param>
-      <key>label15</key>
-      <value>Tab 15</value>
-    </param>
-    <param>
-      <key>label16</key>
-      <value>Tab 16</value>
-    </param>
-    <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
-    </param>
-    <param>
-      <key>label19</key>
-      <value>Tab 19</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>1,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(48, 715)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(624, 1003)</value>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tag_debug</key>
     <param>
       <key>id</key>
-      <value>blocks_tag_debug_0</value>
+      <value>qtgui_time_sink_x_1_0_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>name</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>filter</key>
-      <value>""</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_inputs</key>
+      <key>style1</key>
       <value>1</value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>display</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(520, 667)</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>digital_corr_est_cc</key>
     <param>
-      <key>id</key>
-      <value>digital_corr_est_cc_0</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>symbols</key>
-      <value>modulated_sync_word</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>mark_delay</key>
-      <value>mark_delay</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0.9</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 619)</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>time_offset</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Time Offset</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1.0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0.99</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1.01</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.00001</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,2,1,1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(712, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>noise</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Noise Amp</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>5</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.001</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,0,1,1</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 875)</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_random_pdu</key>
     <param>
-      <key>id</key>
-      <value>blocks_random_pdu_0</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>minsize</key>
-      <value>20</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>maxsize</key>
-      <value>20</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>mask</key>
-      <value>0xFF</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>length_modulo</key>
-      <value>2</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>size</key>
+      <value>1250</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_delay</key>
+      <value>50</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(208, 67)</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
-  </block>
-  <block>
-    <key>variable_packet_formatter_default</key>
     <param>
-      <key>id</key>
-      <value>formatter</value>
+      <key>tr_tag</key>
+      <value>"corr_est"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>access_code</key>
-      <value>digital.packet_utils.default_access_code</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Correlation</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1064, 3)</value>
+      <key>ymax</key>
+      <value>150</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-150</value>
     </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>mark_delay</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Mark Delay</value>
+      <key>_coordinate</key>
+      <value>(16, 379)</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>int</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>33</value>
+      <key>id</key>
+      <value>rx_mod_header</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
     <param>
-      <key>stop</key>
-      <value>200</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter</value>
+      <key>_coordinate</key>
+      <value>(16, 427)</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>id</key>
+      <value>rx_mod_payload</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>2,2,1,1</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -5154,231 +4845,242 @@
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(824, 875)</value>
+      <value>(24, 971)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_format_async</key>
     <param>
       <key>id</key>
-      <value>digital_packet_format_async_1</value>
+      <value>tab0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 232)</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
-  </block>
-  <block>
-    <key>digital_burst_shaper_xx</key>
     <param>
-      <key>id</key>
-      <value>digital_burst_shaper_xx_0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>window</key>
-      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>pre_padding</key>
-      <value>20</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>post_padding</key>
-      <value>20</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>insert_phasing</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>length_tag_name</key>
-      <value>packet_len</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(448, 379)</value>
+      <value>(160, 971)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_parse_x</key>
     <param>
       <key>id</key>
-      <value>digital_packet_parse_x_0</value>
+      <value>tab1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value>Freq.</value>
+    </param>
+    <param>
+      <key>label10</key>
+      <value>Tab 10</value>
+    </param>
+    <param>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>type</key>
-      <value>b</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0</value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(952, 571)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_debug</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_debug_0_0_0</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1184, 584)</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
-    <source_key>payload</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
-    <source_key>header</source_key>
-    <sink_key>pdus</sink_key>
+    <source_block_id>blocks_message_strobe_0</source_block_id>
+    <sink_block_id>blocks_random_pdu_0</sink_block_id>
+    <source_key>strobe</source_key>
+    <sink_key>generate</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_header</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_payload</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_crc32_async_bb_1</source_block_id>
-    <sink_block_id>fec_async_encoder_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>blocks_random_pdu_0</source_block_id>
@@ -5387,62 +5089,74 @@
     <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_message_strobe_0</source_block_id>
-    <sink_block_id>blocks_random_pdu_0</sink_block_id>
-    <source_key>strobe</source_key>
-    <sink_key>generate</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
+    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>fec_async_encoder_0</source_block_id>
-    <sink_block_id>digital_packet_format_async_1</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
+    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>chan_rx_data</source_block_id>
-    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
+    <source_block_id>blocks_repack_bits_bb_0_1</source_block_id>
+    <sink_block_id>blocks_tagged_stream_to_pdu_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
+    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
-    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
+    <sink_block_id>digital_crc32_async_bb_0</sink_block_id>
+    <source_key>pdus</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>chan_rx_data</source_block_id>
+    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>chan_data</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1_0</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
-    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
-    <sink_block_id>mod_payload</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
+    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -5453,111 +5167,147 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
-    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
+    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
+    <sink_block_id>mod_payload</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
-    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
+    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
+    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
+    <source_block_id>digital_constellation_decoder_cb_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
-    <source_key>0</source_key>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <sink_block_id>blocks_tag_debug_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <source_block_id>digital_crc32_async_bb_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>print_pdu</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_crc32_async_bb_1</source_block_id>
+    <sink_block_id>digital_packet_format_async_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
     <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
-    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>digital_constellation_decoder_cb_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
-    <sink_block_id>channels_channel_model_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>chan_data</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
+    <source_block_id>digital_map_bb_1</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>digital_map_bb_1_0</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
+    <source_key>header</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
+    <source_key>payload</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_parse_x_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
+    <source_key>info</source_key>
+    <sink_key>print</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_parse_x_0</source_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
+    <source_key>info</source_key>
+    <sink_key>header_data</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
-    <source_key>1</source_key>
+    <source_block_id>rx_mod_header</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_packet_parse_x_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
-    <source_key>info</source_key>
-    <sink_key>print</sink_key>
+    <source_block_id>rx_mod_payload</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
   </connection>
 </flow_graph>
diff --git a/gr-digital/examples/packet/parse_packet_header.grc 
b/gr-digital/examples/packet/packet_loopback.grc
similarity index 88%
copy from gr-digital/examples/packet/parse_packet_header.grc
copy to gr-digital/examples/packet/packet_loopback.grc
index fa5fd53..7394c76 100644
--- a/gr-digital/examples/packet/parse_packet_header.grc
+++ b/gr-digital/examples/packet/packet_loopback.grc
@@ -1,23 +1,23 @@
-<?xml version='1.0' encoding='ASCII'?>
-<?grc format='1' created='3.7.8'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
 <flow_graph>
   <timestamp>Thu Dec  4 14:34:25 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>parse_packet_header</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>window_size</key>
+      <value>2000,2000</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>category</key>
+      <value>Custom</value>
     </param>
     <param>
-      <key>author</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -25,325 +25,379 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>2000,2000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>frame_demux</value>
     </param>
     <param>
       <key>max_nouts</key>
       <value>0</value>
     </param>
     <param>
+      <key>qt_qss_theme</key>
+      <value></value>
+    </param>
+    <param>
       <key>realtime_scheduling</key>
       <value></value>
     </param>
     <param>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>thread_safe_setters</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>title</key>
       <value></value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(8, 11)</value>
+      <value>(576, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>sps</value>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1064, 67)</value>
+      <value>(736, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>preamble</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_4()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 3)</value>
+      <value>(896, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rxmod</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>4</value>
     </param>
     <param>
-      <key>value</key>
-      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_4()[1]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_cc_decoder_def</key>
+    <param>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1432, 67)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>nfilts</value>
+      <key>dim2</key>
+      <value>4</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>32</value>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>state_end</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1136, 67)</value>
+      <value>(1416, 1067)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rate</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>2</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1344, 995)</value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>state_start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
+    </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_dummy_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>rep</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>3</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1248, 1059)</value>
+      <value>(1024, 971)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>polys</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>[109, 79]</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1320, 1059)</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>ndim</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_repetition_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>k</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>7</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1272, 995)</value>
+      <value>(1216, 987)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>eb</value>
+      <value>dec</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.22</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rep</key>
+      <value>rep</value>
+    </param>
+    <param>
+      <key>prob</key>
+      <value>0.5</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
       <value>(1208, 67)</value>
     </param>
@@ -351,699 +405,805 @@
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <value>eb</value>
     </param>
     <param>
       <key>value</key>
-      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
+      <value>0.22</value>
     </param>
+  </block>
+  <block>
+    <key>variable_cc_encoder_def</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 131)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_header</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(16, 379)</value>
+      <value>(1416, 891)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
       <key>id</key>
-      <value>rx_mod_payload</value>
+      <value>enc</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 427)</value>
+      <key>state_start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
     </param>
   </block>
   <block>
-    <key>variable_constellation</key>
+    <key>variable_dummy_encoder_def</key>
     <param>
-      <key>id</key>
-      <value>Const_PLD</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(1024, 891)</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>id</key>
+      <value>enc</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable_repetition_encoder_def</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(736, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
-      <key>id</key>
-      <value>Const_PLD</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_4()[1]</value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_4()[0]</value>
+      <key>_coordinate</key>
+      <value>(1216, 891)</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>4</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>id</key>
+      <value>enc</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rep</key>
+      <value>rep</value>
     </param>
+  </block>
+  <block>
+    <key>variable_packet_formatter_default</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>access_code</key>
+      <value>digital.packet_utils.default_access_code</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(896, 3)</value>
+      <value>(1064, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>formatter</value>
+    </param>
   </block>
   <block>
-    <key>variable_constellation</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>Const_HDR</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>_coordinate</key>
+      <value>(896, 131)</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>id</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>value</key>
+      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(136, 843)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(576, 3)</value>
+      <key>gui_hint</key>
+      <value>0,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_crc32_async_bb</key>
     <param>
       <key>id</key>
-      <value>digital_crc32_async_bb_1</value>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Freq. Offset</value>
     </param>
     <param>
-      <key>check</key>
-      <value>False</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>start</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>stop</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(424, 91)</value>
+      <value>(1272, 1107)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>k</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>7</value>
+    </param>
   </block>
   <block>
-    <key>fec_async_encoder</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>fec_async_encoder_0</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>33</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>encoder</key>
-      <value>enc</value>
+      <key>_coordinate</key>
+      <value>(360, 843)</value>
     </param>
     <param>
-      <key>packed</key>
-      <value>True</value>
+      <key>gui_hint</key>
+      <value>2,2,1,1</value>
     </param>
     <param>
-      <key>rev_unpack</key>
-      <value>False</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rev_pack</key>
-      <value>False</value>
+      <key>id</key>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label</key>
+      <value>Mark Delay</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>start</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(80, 171)</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>stop</key>
+      <value>200</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>rangeType</key>
+      <value>int</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
+  </block>
+  <block>
+    <key>variable_modulate_vector</key>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>data</key>
+      <value>preamble</value>
     </param>
     <param>
-      <key>dim1</key>
+      <key>_enabled</key>
       <value>1</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>taps</key>
+      <value>[1]</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_coordinate</key>
+      <value>(1432, 131)</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>prob</key>
-      <value>0.5</value>
+      <key>id</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>mod</key>
+      <value>rxmod</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1216, 875)</value>
+      <value>(1136, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>32</value>
+    </param>
   </block>
   <block>
-    <key>variable_cc_encoder_def</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.0</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(24, 843)</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>gui_hint</key>
+      <value>0,0,1,1</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>id</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>label</key>
+      <value>Noise Amp</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>state_start</key>
+      <key>start</key>
       <value>0</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1416, 779)</value>
+      <value>(1320, 1171)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_dummy_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>polys</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[109, 79]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1432, 3)</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>id</key>
+      <value>preamble</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>value</key>
+      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 779)</value>
+      <value>(1344, 1107)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>rate</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2</value>
+    </param>
   </block>
   <block>
-    <key>variable_dummy_decoder_def</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>_coordinate</key>
+      <value>(1248, 1171)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>rep</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>value</key>
+      <value>3</value>
     </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 859)</value>
+      <value>(1296, 131)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_encoder_def</key>
+    <param>
+      <key>gain</key>
+      <value>nfilts</value>
+    </param>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>_coordinate</key>
+      <value>(1432, 67)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>rxmod</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1216, 779)</value>
+      <value>(1064, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>sps</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>value</key>
+      <value>2</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>value</key>
-      <value>"ok"</value>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(248, 843)</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>4</value>
+      <key>gui_hint</key>
+      <value>0,2,1,1</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>id</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>label</key>
+      <value>Time Offset</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>state_end</key>
-      <value>-1</value>
+      <key>start</key>
+      <value>0.99</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>step</key>
+      <value>0.00001</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>stop</key>
+      <value>1.01</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>eb</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1416, 955)</value>
+      <value>(1296, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_modulate_vector</key>
     <param>
-      <key>id</key>
-      <value>modulated_sync_word</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>id</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>mod</key>
-      <value>rxmod</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>data</key>
-      <value>preamble</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>[1]</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_debug</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -1053,70 +1213,102 @@
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 131)</value>
+      <value>(1640, 729)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>blocks_message_debug_0_0_0</value>
+    </param>
   </block>
   <block>
     <key>blocks_message_strobe</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_strobe_0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>_coordinate</key>
+      <value>(24, 83)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_message_strobe_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>msg</key>
       <value>pmt.intern("TEST")</value>
     </param>
     <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>period</key>
       <value>1000</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(24, 83)</value>
+      <value>(336, 299)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_pdu_to_tagged_stream_0</value>
     </param>
     <param>
       <key>type</key>
@@ -1127,43 +1319,43 @@
       <value>packet_len</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(336, 211)</value>
+      <value>(336, 227)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_pdu_to_tagged_stream_0_0</value>
     </param>
     <param>
       <key>type</key>
@@ -1174,168 +1366,195 @@
       <value>packet_len</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_random_pdu</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>mask</key>
+      <value>0xFF</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(336, 283)</value>
+      <value>(208, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0</value>
+      <value>blocks_random_pdu_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>length_modulo</key>
+      <value>2</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>maxsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_HDR.bits_per_symbol()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>minsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>Const_HDR.bits_per_symbol()</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 203)</value>
+      <value>(560, 219)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1</value>
+      <value>blocks_repack_bits_bb_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_HDR.pre_diff_code()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>Const_PLD.bits_per_symbol()</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(760, 211)</value>
+      <value>(560, 291)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
       <value>blocks_repack_bits_bb_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>k</key>
-      <value>8</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_PLD.bits_per_symbol()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>align_output</key>
       <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tag_debug</key>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -1343,273 +1562,273 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>display</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>_enabled</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
       <key>_coordinate</key>
-      <value>(560, 275)</value>
+      <value>(728, 491)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1_0</value>
+      <value>blocks_tag_debug_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_PLD.pre_diff_code()</value>
+      <key>filter</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>name</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(760, 283)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
-    <param>
-      <key>id</key>
-      <value>mod_header</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
       <key>_coordinate</key>
-      <value>(1120, 211)</value>
+      <value>(936, 417)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0_0</value>
+      <value>blocks_tagged_stream_multiply_length_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>c</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_PLD.points()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
+      <key>vlen</key>
       <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_mux</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 275)</value>
+      <value>(216, 401)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0</value>
+      <value>blocks_tagged_stream_mux_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_HDR.points()</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>ninputs</key>
+      <value>2</value>
     </param>
     <param>
-      <key>num_ports</key>
+      <key>tag_preserve_head_pos</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>vlen</key>
       <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_to_pdu</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
       <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>_coordinate</key>
+      <value>(976, 811)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>id</key>
+      <value>blocks_tagged_stream_to_pdu_0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 203)</value>
+      <key>type</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>tag</key>
+      <value>"payload bits"</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
   </block>
   <block>
     <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>mod_payload</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>_coordinate</key>
+      <value>(1224, 515)</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 283)</value>
+      <key>id</key>
+      <value>chan_data</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
   </block>
   <block>
-    <key>blocks_tagged_stream_mux</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_mux_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(48, 571)</value>
     </param>
     <param>
-      <key>ninputs</key>
-      <value>2</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>id</key>
+      <value>chan_rx_data</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
     <param>
-      <key>tag_preserve_head_pos</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>block_tags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -1617,56 +1836,52 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>epsilon</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(216, 400)</value>
+      <value>(1224, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>tx_rrc_taps</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>noise_voltage</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>seed</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>taps</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_burst_shaper_xx</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -1676,676 +1891,670 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0_0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(448, 379)</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>id</key>
+      <value>digital_burst_shaper_xx_0</value>
     </param>
     <param>
-      <key>freqhalf</key>
+      <key>insert_phasing</key>
       <value>True</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>length_tag_name</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>fc</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>post_padding</key>
+      <value>20</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>pre_padding</key>
+      <value>20</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>window</key>
+      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>dimension</key>
+      <value>1</value>
     </param>
     <param>
-      <key>showports</key>
+      <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>_coordinate</key>
+      <value>(896, 219)</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width1</key>
+      <key>num_ports</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>out_type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>symbol_table</key>
+      <value>Const_HDR.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>label2</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label3</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
+      <key>dimension</key>
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(896, 291)</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0_0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width5</key>
+      <key>num_ports</key>
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>out_type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>symbol_table</key>
+      <value>Const_PLD.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>label6</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>constellation</key>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(1072, 603)</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_constellation_decoder_cb_0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_constellation_soft_decoder_cf</key>
     <param>
-      <key>label9</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>constellation</key>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>_coordinate</key>
+      <value>(984, 723)</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_constellation_soft_decoder_cf_0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_corr_est_cc</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 707)</value>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(48, 619)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_costas_loop_cc</key>
     <param>
       <key>id</key>
-      <value>digital_costas_loop_cc_0_0</value>
+      <value>digital_corr_est_cc_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>w</key>
-      <value>6.28/100.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>order</key>
-      <value>Const_HDR.arity()</value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>use_snr</key>
-      <value>False</value>
+      <key>symbols</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>mark_delay</key>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>threshold</key>
+      <value>0.9</value>
     </param>
+  </block>
+  <block>
+    <key>digital_costas_loop_cc</key>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(512, 584)</value>
+      <value>(504, 585)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
       <key>id</key>
-      <value>qtgui_const_sink_x_0_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>digital_costas_loop_cc_0_0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>w</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>800</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>order</key>
+      <value>Const_HDR.arity()</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>use_snr</key>
       <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>_enabled</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_coordinate</key>
+      <value>(1448, 811)</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>id</key>
+      <value>digital_crc32_async_bb_0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>check</key>
+      <value>True</value>
     </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label1</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(424, 91)</value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_crc32_async_bb_1</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>check</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_header_payload_demux</key>
     <param>
-      <key>marker2</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label3</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>_coordinate</key>
+      <value>(712, 571)</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker3</key>
+      <key>guard_interval</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>header_len</key>
+      <value>formatter.header_nbits()</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_header_payload_demux_0</value>
     </param>
     <param>
-      <key>width4</key>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>items_per_symbol</key>
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>length_tag_key</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker4</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>output_symbols</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>samp_rate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>special_tags</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>timing_tag_key</key>
+      <value>"rx_time"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>trigger_tag_key</key>
+      <value>"time_est"</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>_coordinate</key>
+      <value>(760, 227)</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>id</key>
+      <value>digital_map_bb_1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>map</key>
+      <value>Const_HDR.pre_diff_code()</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(760, 299)</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>digital_map_bb_1_0</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>map</key>
+      <value>Const_PLD.pre_diff_code()</value>
     </param>
     <param>
-      <key>marker8</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_format_async</key>
     <param>
-      <key>label9</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(80, 241)</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>digital_packet_format_async_1</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_parse_x</key>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -2353,1433 +2562,1464 @@
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(728, 787)</value>
+      <value>(1360, 715)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>rx_rrc_taps</value>
+      <value>digital_packet_parse_x_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>threshold</key>
+      <value>3</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>b</value>
     </param>
+  </block>
+  <block>
+    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>filter_size</key>
+      <value>nfilts</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1296, 131)</value>
+      <value>(280, 579)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>pfb_arb_resampler_xxx</key>
     <param>
       <key>id</key>
-      <value>pfb_arb_resampler_xxx_0</value>
+      <value>digital_pfb_clock_sync_xxx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>init_phase</key>
+      <value>nfilts/2</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>loop_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>rrate</key>
-      <value>sps</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>tx_rrc_taps</value>
+      <key>max_dev</key>
+      <value>1.5</value>
     </param>
     <param>
-      <key>nfilts</key>
-      <value>nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>atten</key>
-      <value>100</value>
+      <key>osps</key>
+      <value>1</value>
     </param>
     <param>
-      <key>samp_delay</key>
-      <value>0</value>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>rx_rrc_taps</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>ccf</value>
     </param>
+  </block>
+  <block>
+    <key>fec_async_decoder</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>decoder</key>
+      <value>dec</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(680, 387)</value>
+      <value>(1208, 803)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>channels_channel_model</key>
     <param>
       <key>id</key>
-      <value>channels_channel_model_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>noise_voltage</key>
-      <value>noise</value>
+      <value>fec_async_decoder_0</value>
     </param>
     <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
+      <key>mtu</key>
+      <value>1500</value>
     </param>
     <param>
-      <key>epsilon</key>
-      <value>time_offset</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>0</value>
+      <key>packed</key>
+      <value>True</value>
     </param>
     <param>
-      <key>block_tags</key>
+      <key>rev_pack</key>
       <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>fec_async_encoder</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>encoder</key>
+      <value>enc</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1224, 395)</value>
+      <value>(80, 171)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
       <key>id</key>
-      <value>chan_data</value>
+      <value>fec_async_encoder_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>mtu</key>
+      <value>1500</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 523)</value>
+      <key>packed</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>rev_pack</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>rev_unpack</key>
+      <value>False</value>
     </param>
   </block>
   <block>
-    <key>qtgui_time_sink_x</key>
+    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(1120, 227)</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>id</key>
+      <value>mod_header</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
-      <key>size</key>
-      <value>2500</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(1120, 299)</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>id</key>
+      <value>mod_payload</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>pfb_arb_resampler_xxx</key>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>entags</key>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_coordinate</key>
+      <value>(680, 387)</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>id</key>
+      <value>pfb_arb_resampler_xxx_0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>nfilts</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>rrate</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>atten</key>
+      <value>100</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>taps</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>legend</key>
+      <key>type</key>
+      <value>ccf</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
+    <param>
+      <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>_coordinate</key>
+      <value>(1480, 515)</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style7</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha10</key>
+      <key>alpha8</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 355)</value>
+      <key>marker8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style8</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>bw</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label1</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>_coordinate</key>
+      <value>(600, 763)</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0_0_0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color5</key>
-      <value>"cyan"</value>
-    </param>
-    <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width6</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width9</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker5</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style5</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1480, 435)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>marker7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>marker8</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>style8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>style1</key>
+      <key>marker9</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>style9</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width2</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>size</key>
+      <value>800</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(1480, 435)</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha7</key>
+      <key>alpha10</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>color10</key>
+      <value>"dark blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 515)</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_multiply_length_0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>c</key>
-      <value>sps</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(936, 416)</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>freqhalf</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>yunit</key>
+      <key>tr_tag</key>
       <value>""</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(632, 827)</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0_0</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
       <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>label10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
       <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
       <key>color3</key>
       <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha3</key>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
       <key>label4</key>
       <value></value>
     </param>
@@ -3788,20 +4028,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
       <key>label5</key>
@@ -3812,20 +4044,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
       <key>label6</key>
@@ -3836,20 +4060,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
       <key>label7</key>
@@ -3860,20 +4076,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
       <key>label8</key>
@@ -3884,20 +4092,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
       <key>label9</key>
@@ -3908,845 +4108,797 @@
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 627)</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>chan_rx_data</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>units</key>
+      <value>dB</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 571)</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>affinity</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>id</key>
-      <value>digital_pfb_clock_sync_xxx_0</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>_coordinate</key>
+      <value>(1480, 355)</value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>loop_bw</key>
-      <value>6.28/100.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>rx_rrc_taps</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>nfilts</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>init_phase</key>
-      <value>nfilts/2</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>1.5</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>osps</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(280, 579)</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label10</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0_0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Correlation</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>srate</key>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-150</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>150</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,0,1,1</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
-      <value>50</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha3</key>
+      <key>alpha8</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>style8</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha4</key>
+      <key>alpha9</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>style9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width6</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>size</key>
+      <value>2500</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>srate</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label9</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(664, 907)</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 715)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>id</key>
-      <value>digital_constellation_decoder_cb_0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>constellation</key>
-      <value>Const_HDR</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 579)</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
     <param>
-      <key>id</key>
-      <value>tab0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_tabs</key>
-      <value>3</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label0</key>
-      <value>Time</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value>Freq.</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value>Const.</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
       <key>label3</key>
-      <value>Tab 3</value>
+      <value></value>
     </param>
     <param>
-      <key>label4</key>
-      <value>Tab 4</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value>Tab 5</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value>Tab 8</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value>Tab 9</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>label10</key>
-      <value>Tab 10</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>label11</key>
-      <value>Tab 11</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label12</key>
-      <value>Tab 12</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label13</key>
-      <value>Tab 13</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label14</key>
-      <value>Tab 14</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label15</key>
-      <value>Tab 15</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>label16</key>
-      <value>Tab 16</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>label17</key>
-      <value>Tab 17</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label18</key>
-      <value>Tab 18</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label19</key>
-      <value>Tab 19</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,1,1,1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>freq_offset</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Freq. Offset</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
+      <key>marker7</key>
       <value>-1</value>
     </param>
     <param>
-      <key>stop</key>
+      <key>style7</key>
       <value>1</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,1,1,1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(600, 875)</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
     <param>
-      <key>id</key>
-      <value>tab1</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>num_tabs</key>
-      <value>3</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>label0</key>
-      <value>Time</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>label1</key>
-      <value>Freq.</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label2</key>
-      <value>Const.</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value>Tab 3</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value>Tab 4</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label5</key>
-      <value>Tab 5</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value>Tab 6</value>
+      <key>size</key>
+      <value>125</value>
     </param>
     <param>
-      <key>label7</key>
-      <value>Tab 7</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value>Tab 8</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value>Tab 9</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value>Tab 10</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>label11</key>
-      <value>Tab 11</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>label12</key>
-      <value>Tab 12</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>label13</key>
-      <value>Tab 13</value>
+      <key>tr_tag</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>label14</key>
-      <value>Tab 14</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>label15</key>
-      <value>Tab 15</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label16</key>
-      <value>Tab 16</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>label17</key>
-      <value>Tab 17</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label18</key>
-      <value>Tab 18</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>label19</key>
-      <value>Tab 19</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>gui_hint</key>
-      <value>1,2,1,1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
       <key>alias</key>
@@ -4757,394 +4909,765 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(624, 1003)</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tag_debug</key>
     <param>
-      <key>id</key>
-      <value>blocks_tag_debug_0</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(48, 715)</value>
     </param>
     <param>
-      <key>name</key>
-      <value></value>
-    </param>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_0</value>
+    </param>
+    <param>
+      <key>legend</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker10</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker2</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style2</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width2</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>label3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker3</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha4</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>label4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker4</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"cyan"</value>
+    </param>
+    <param>
+      <key>label5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker5</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker6</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker7</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker8</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>label9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker9</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>1250</value>
+    </param>
+    <param>
+      <key>srate</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_delay</key>
+      <value>50</value>
+    </param>
+    <param>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
+    </param>
+    <param>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>"corr_est"</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>ylabel</key>
+      <value>Correlation</value>
+    </param>
+    <param>
+      <key>yunit</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>150</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-150</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ctrlpanel</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>entags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(360, 731)</value>
+    </param>
     <param>
-      <key>filter</key>
-      <value>""</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>display</key>
-      <value>True</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(520, 667)</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>marker1</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_corr_est_cc</key>
     <param>
-      <key>id</key>
-      <value>digital_corr_est_cc_0</value>
+      <key>style1</key>
+      <value>3</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>symbols</key>
-      <value>modulated_sync_word</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>mark_delay</key>
-      <value>mark_delay</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0.9</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 619)</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>time_offset</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Time Offset</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
+      <key>marker3</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0.99</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1.01</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.00001</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,2,1,1</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(712, 875)</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>noise</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Noise Amp</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>5</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.001</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,0,1,1</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 875)</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_random_pdu</key>
     <param>
-      <key>id</key>
-      <value>blocks_random_pdu_0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>minsize</key>
-      <value>20</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>maxsize</key>
-      <value>20</value>
+      <key>label9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>marker9</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>mask</key>
-      <value>0xFF</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>length_modulo</key>
-      <value>2</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>size</key>
+      <value>125</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_delay</key>
+      <value>5</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(208, 67)</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
-  </block>
-  <block>
-    <key>variable_packet_formatter_default</key>
     <param>
-      <key>id</key>
-      <value>formatter</value>
+      <key>tr_tag</key>
+      <value>"time_est"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>access_code</key>
-      <value>digital.packet_utils.default_access_code</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1064, 3)</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>mark_delay</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Mark Delay</value>
+      <key>_coordinate</key>
+      <value>(16, 379)</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>int</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>33</value>
+      <key>id</key>
+      <value>rx_mod_header</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
     <param>
-      <key>stop</key>
-      <value>200</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter</value>
+      <key>_coordinate</key>
+      <value>(16, 427)</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>id</key>
+      <value>rx_mod_payload</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>2,2,1,1</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -5154,231 +5677,242 @@
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(824, 875)</value>
+      <value>(24, 971)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_format_async</key>
     <param>
       <key>id</key>
-      <value>digital_packet_format_async_1</value>
+      <value>tab0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 232)</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
-  </block>
-  <block>
-    <key>digital_burst_shaper_xx</key>
     <param>
-      <key>id</key>
-      <value>digital_burst_shaper_xx_0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>window</key>
-      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>pre_padding</key>
-      <value>20</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>post_padding</key>
-      <value>20</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>insert_phasing</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>length_tag_name</key>
-      <value>packet_len</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(448, 379)</value>
+      <value>(160, 971)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_parse_x</key>
     <param>
       <key>id</key>
-      <value>digital_packet_parse_x_0</value>
+      <value>tab1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>type</key>
-      <value>b</value>
+      <key>label1</key>
+      <value>Freq.</value>
+    </param>
+    <param>
+      <key>label10</key>
+      <value>Tab 10</value>
+    </param>
+    <param>
+      <key>label11</key>
+      <value>Tab 11</value>
+    </param>
+    <param>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0</value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(952, 571)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_debug</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_debug_0_0_0</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1184, 584)</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
-    <source_key>payload</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
-    <source_key>header</source_key>
-    <sink_key>pdus</sink_key>
+    <source_block_id>blocks_message_strobe_0</source_block_id>
+    <sink_block_id>blocks_random_pdu_0</sink_block_id>
+    <source_key>strobe</source_key>
+    <sink_key>generate</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_header</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_payload</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_crc32_async_bb_1</source_block_id>
-    <sink_block_id>fec_async_encoder_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>blocks_random_pdu_0</source_block_id>
@@ -5387,62 +5921,68 @@
     <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_message_strobe_0</source_block_id>
-    <sink_block_id>blocks_random_pdu_0</sink_block_id>
-    <source_key>strobe</source_key>
-    <sink_key>generate</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
+    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>fec_async_encoder_0</source_block_id>
-    <sink_block_id>digital_packet_format_async_1</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
+    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>chan_rx_data</source_block_id>
-    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
+    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
+    <sink_block_id>fec_async_decoder_0</sink_block_id>
+    <source_key>pdus</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>chan_rx_data</source_block_id>
+    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
-    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>chan_data</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1_0</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
-    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
-    <sink_block_id>mod_payload</sink_block_id>
+    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
+    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -5453,111 +5993,159 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
-    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
+    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
+    <sink_block_id>mod_payload</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
-    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
+    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
+    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
+    <source_block_id>digital_constellation_soft_decoder_cf_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_to_pdu_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
     <sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>blocks_tag_debug_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <source_block_id>digital_crc32_async_bb_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>print_pdu</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_crc32_async_bb_1</source_block_id>
+    <sink_block_id>fec_async_encoder_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
     <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
-    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>digital_constellation_soft_decoder_cf_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
-    <sink_block_id>channels_channel_model_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>chan_data</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
+    <source_block_id>digital_map_bb_1</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>digital_map_bb_1_0</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
+    <source_key>header</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
+    <source_key>payload</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_parse_x_0</source_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
+    <source_key>info</source_key>
+    <sink_key>header_data</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_block_id>fec_async_decoder_0</source_block_id>
+    <sink_block_id>digital_crc32_async_bb_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fec_async_encoder_0</source_block_id>
+    <sink_block_id>digital_packet_format_async_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
-    <source_key>1</source_key>
+    <source_block_id>rx_mod_header</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_packet_parse_x_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
-    <source_key>info</source_key>
-    <sink_key>print</sink_key>
+    <source_block_id>rx_mod_payload</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
   </connection>
 </flow_graph>
diff --git a/gr-digital/examples/packet/parse_packet_header.grc 
b/gr-digital/examples/packet/packet_loopback_hier.grc
similarity index 72%
copy from gr-digital/examples/packet/parse_packet_header.grc
copy to gr-digital/examples/packet/packet_loopback_hier.grc
index fa5fd53..d5ce95e 100644
--- a/gr-digital/examples/packet/parse_packet_header.grc
+++ b/gr-digital/examples/packet/packet_loopback_hier.grc
@@ -1,23 +1,23 @@
-<?xml version='1.0' encoding='ASCII'?>
-<?grc format='1' created='3.7.8'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
 <flow_graph>
   <timestamp>Thu Dec  4 14:34:25 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>parse_packet_header</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>window_size</key>
+      <value>2000,2000</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>category</key>
+      <value>Custom</value>
     </param>
     <param>
-      <key>author</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -25,1025 +25,1064 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>2000,2000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>packet_loopback_hier</value>
     </param>
     <param>
       <key>max_nouts</key>
       <value>0</value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
+      <key>qt_qss_theme</key>
       <value></value>
     </param>
     <param>
-      <key>thread_safe_setters</key>
+      <key>realtime_scheduling</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>run_options</key>
+      <value>prompt</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(8, 11)</value>
+      <key>run</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>sps</value>
+      <key>title</key>
+      <value></value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dims</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1064, 67)</value>
+      <value>(240, 11)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>preamble</value>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_4()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 3)</value>
+      <value>(560, 11)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rxmod</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>4</value>
     </param>
     <param>
-      <key>value</key>
-      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_4()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 67)</value>
+      <value>(400, 11)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>nfilts</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>32</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_cc_decoder_def</key>
+    <param>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1136, 67)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>rate</value>
+      <key>dim2</key>
+      <value>4</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>2</value>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>state_end</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1344, 995)</value>
+      <value>(1328, 667)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rep</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>3</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1248, 1059)</value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>state_start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
+    </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_dummy_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>polys</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>[109, 79]</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1320, 1059)</value>
+      <value>(936, 571)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>k</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>7</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1272, 995)</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>ndim</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_repetition_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>eb</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.22</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1208, 67)</value>
+      <value>(1128, 587)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>formatter</value>
+      <value>dec</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>value</key>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>value</key>
-      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rep</key>
+      <value>rep</value>
+    </param>
+    <param>
+      <key>prob</key>
+      <value>0.5</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(896, 131)</value>
+      <value>(152, 75)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
       <key>id</key>
-      <value>rx_mod_header</value>
+      <value>eb</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>0.22</value>
     </param>
+  </block>
+  <block>
+    <key>variable_cc_encoder_def</key>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 379)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_payload</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(16, 427)</value>
+      <value>(1328, 491)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
+      <value>enc</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>state_start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
     </param>
+  </block>
+  <block>
+    <key>variable_dummy_encoder_def</key>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(736, 3)</value>
+      <value>(936, 491)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_PLD</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>sym_map</key>
-      <value>digital.psk_4()[1]</value>
+      <value>enc</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_4()[0]</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable_repetition_encoder_def</key>
     <param>
-      <key>rot_sym</key>
-      <value>4</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dims</key>
+      <key>dim1</key>
       <value>1</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
-    </param>
-    <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 3)</value>
+      <value>(1128, 491)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
       <key>id</key>
-      <value>Const_HDR</value>
+      <value>enc</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>rep</key>
+      <value>rep</value>
     </param>
+  </block>
+  <block>
+    <key>variable_packet_formatter_default</key>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>access_code</key>
+      <value>digital.packet_utils.default_access_code</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>_coordinate</key>
+      <value>(728, 11)</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>id</key>
+      <value>formatter</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(576, 3)</value>
+      <value>(728, 75)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_crc32_async_bb</key>
     <param>
       <key>id</key>
-      <value>digital_crc32_async_bb_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>formatter</value>
     </param>
     <param>
-      <key>check</key>
-      <value>False</value>
+      <key>value</key>
+      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
+      <key>value</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(1000, 307)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(424, 91)</value>
+      <key>gui_hint</key>
+      <value>0,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>fec_async_encoder</key>
     <param>
       <key>id</key>
-      <value>fec_async_encoder_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>encoder</key>
-      <value>enc</value>
+      <key>label</key>
+      <value>Freq. Offset</value>
     </param>
     <param>
-      <key>packed</key>
-      <value>True</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>rev_unpack</key>
-      <value>False</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rev_pack</key>
-      <value>False</value>
+      <key>start</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(80, 171)</value>
+      <value>(1184, 707)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>180</value>
+      <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <value>k</value>
     </param>
     <param>
       <key>value</key>
-      <value>"ok"</value>
-    </param>
-    <param>
-      <key>ndim</key>
-      <value>0</value>
+      <value>7</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_coordinate</key>
+      <value>(80, 75)</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>prob</key>
-      <value>0.5</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>value</key>
+      <value>32</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 875)</value>
+      <key>value</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_encoder_def</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>_coordinate</key>
+      <value>(888, 307)</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>gui_hint</key>
+      <value>0,0,1,1</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>id</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>label</key>
+      <value>Noise Amp</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1416, 779)</value>
+      <value>(1232, 771)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>polys</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[109, 79]</value>
+    </param>
   </block>
   <block>
-    <key>variable_dummy_encoder_def</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1256, 707)</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>id</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>value</key>
+      <value>2</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 779)</value>
+      <value>(1160, 771)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>rep</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>3</value>
+    </param>
   </block>
   <block>
-    <key>variable_dummy_decoder_def</key>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_coordinate</key>
+      <value>(1080, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>id</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1024, 859)</value>
+      <value>(8, 75)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>sps</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>value</key>
+      <value>2</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>value</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_coordinate</key>
+      <value>(1112, 307)</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>gui_hint</key>
+      <value>0,2,1,1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>id</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 779)</value>
+      <key>label</key>
+      <value>Time Offset</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>start</key>
+      <value>0.99</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>step</key>
+      <value>0.00001</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>stop</key>
+      <value>1.01</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>4</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>_coordinate</key>
+      <value>(944, 11)</value>
     </param>
     <param>
-      <key>state_start</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>state_end</key>
-      <value>-1</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>id</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_debug</key>
     <param>
-      <key>_coordinate</key>
-      <value>(1416, 955)</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable_modulate_vector</key>
     <param>
-      <key>id</key>
-      <value>modulated_sync_word</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>1</value>
     </param>
     <param>
-      <key>mod</key>
-      <value>rxmod</value>
+      <key>_coordinate</key>
+      <value>(472, 337)</value>
     </param>
     <param>
-      <key>data</key>
-      <value>preamble</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>[1]</value>
+      <key>id</key>
+      <value>blocks_message_debug_0_0_0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_strobe</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -1053,128 +1092,136 @@
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 131)</value>
+      <value>(32, 211)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_strobe</key>
     <param>
       <key>id</key>
       <value>blocks_message_strobe_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>msg</key>
       <value>pmt.intern("TEST")</value>
     </param>
     <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>period</key>
       <value>1000</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_random_pdu</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>mask</key>
+      <value>0xFF</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(24, 83)</value>
+      <value>(216, 195)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_random_pdu_0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>length_modulo</key>
+      <value>2</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>maxsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>minsize</key>
+      <value>20</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(336, 211)</value>
+      <value>(1352, 155)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0</value>
+      <value>chan_data</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>block_tags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -1182,490 +1229,528 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>epsilon</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 283)</value>
+      <value>(976, 179)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0</value>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_HDR.bits_per_symbol()</value>
+      <key>noise_voltage</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>seed</key>
+      <value>0</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>taps</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>packet_rx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
       <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>dec</key>
+      <value>dec</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>eb</key>
+      <value>eb</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 203)</value>
+      <value>(208, 337)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
+    <param>
+      <key>hdr_const</key>
+      <value>Const_HDR</value>
+    </param>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1</value>
+      <value>packet_rx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_HDR.pre_diff_code()</value>
+      <key>formatter</key>
+      <value>formatter</value>
+    </param>
+    <param>
+      <key>pld_const</key>
+      <value>Const_PLD</value>
+    </param>
+    <param>
+      <key>psf_taps</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+  </block>
+  <block>
+    <key>packet_tx</key>
+    <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>enc</key>
+      <value>enc</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(760, 211)</value>
+      <value>(432, 179)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>hdr_const</key>
+      <value>Const_HDR</value>
+    </param>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0_0</value>
+      <value>packet_tx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_PLD.bits_per_symbol()</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>pld_const</key>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>psf_taps</key>
+      <value>tx_rrc_taps</value>
+    </param>
+    <param>
+      <key>sps</key>
+      <value>sps</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(1352, 363)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(560, 275)</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
+    <param>
+      <key>grid</key>
+      <value>False</value>
+    </param>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1_0</value>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_PLD.pre_diff_code()</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker1</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style1</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(760, 283)</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style10</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>mod_header</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 211)</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style2</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0_0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_PLD.points()</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>color4</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker4</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style4</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 275)</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style5</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_HDR.points()</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>style6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>color7</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>marker7</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>style7</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 203)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
-    <param>
-      <key>id</key>
-      <value>mod_payload</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 283)</value>
+      <key>marker8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>style8</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_mux</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_mux_0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ninputs</key>
-      <value>2</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>marker9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>tag_preserve_head_pos</key>
-      <value>0</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(216, 400)</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>tx_rrc_taps</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
       <key>alias</key>
@@ -1676,337 +1761,354 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0_0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>fftsize</key>
-      <value>1024</value>
-    </param>
-    <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>_coordinate</key>
+      <value>(640, 419)</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>fc</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
-    </param>
-    <param>
       <key>grid</key>
       <value>False</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0_0_0</value>
+    </param>
+    <param>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>marker10</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
       <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label3</key>
       <value></value>
     </param>
     <param>
+      <key>marker3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style3</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color5</key>
+      <value>"red"</value>
+    </param>
+    <param>
       <key>label5</key>
       <value></value>
     </param>
     <param>
+      <key>marker5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style5</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label6</key>
       <value></value>
     </param>
     <param>
+      <key>marker6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style6</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label7</key>
       <value></value>
     </param>
     <param>
+      <key>marker7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style7</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label8</key>
       <value></value>
     </param>
     <param>
+      <key>marker8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style8</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
-    </param>
-    <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>size</key>
+      <value>800</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 707)</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
-  </block>
-  <block>
-    <key>digital_costas_loop_cc</key>
     <param>
-      <key>id</key>
-      <value>digital_costas_loop_cc_0_0</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>w</key>
-      <value>6.28/100.0</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>order</key>
-      <value>Const_HDR.arity()</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>use_snr</key>
+      <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>fc</key>
       <value>0</value>
     </param>
     <param>
@@ -2014,143 +2116,100 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(512, 584)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0_0_0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>_coordinate</key>
+      <value>(1352, 283)</value>
     </param>
     <param>
-      <key>size</key>
-      <value>800</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>grid</key>
       <value>False</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker1</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>alpha1</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style2</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
       <key>label3</key>
@@ -2161,20 +2220,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
       <key>label4</key>
@@ -2185,20 +2236,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
       <key>label5</key>
@@ -2209,20 +2252,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
       <key>label6</key>
@@ -2233,20 +2268,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
       <key>label7</key>
@@ -2257,20 +2284,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
       <key>label8</key>
@@ -2281,20 +2300,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
       <key>label9</key>
@@ -2305,3259 +2316,2144 @@
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style9</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 787)</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>id</key>
-      <value>rx_rrc_taps</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 131)</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>pfb_arb_resampler_xxx</key>
     <param>
-      <key>id</key>
-      <value>pfb_arb_resampler_xxx_0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>rrate</key>
-      <value>sps</value>
+      <key>_coordinate</key>
+      <value>(632, 491)</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>tx_rrc_taps</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>nfilts</key>
-      <value>nfilts</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>atten</key>
-      <value>100</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>samp_delay</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0_0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(680, 387)</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
-  </block>
-  <block>
-    <key>channels_channel_model</key>
     <param>
-      <key>id</key>
-      <value>channels_channel_model_0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>noise_voltage</key>
-      <value>noise</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>epsilon</key>
-      <value>time_offset</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>1.0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>0</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>block_tags</key>
-      <value>False</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1224, 395)</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>chan_data</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 523)</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>label6</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>2500</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
       <key>tr_tag</key>
-      <value>packet_len</value>
+      <value>""</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(1352, 203)</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>alpha3</key>
+      <key>legend</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>style1</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha4</key>
+      <key>alpha10</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>style10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha5</key>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style7</key>
+      <key>style3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha7</key>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>style4</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>style5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha9</key>
+      <key>alpha6</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>style6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha7</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 355)</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
       <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>size</key>
+      <value>2500</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
       <key>tr_level</key>
       <value>0.0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label3</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(608, 571)</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha5</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style1</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha10</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>color10</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
+      <key>marker10</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style10</key>
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha7</key>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
+      <key>marker2</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
+      <key>marker3</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha9</key>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>marker4</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style4</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 435)</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width1</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
+      <key>size</key>
+      <value>125</value>
+    </param>
+    <param>
+      <key>srate</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>"payload bits"</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label4</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(528, 739)</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_0</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha5</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha10</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha7</key>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha9</key>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 515)</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_multiply_length_0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>style6</key>
       <value>1</value>
     </param>
     <param>
-      <key>c</key>
-      <value>sps</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(936, 416)</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
       <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>size</key>
+      <value>1250</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>tr_delay</key>
+      <value>50</value>
     </param>
     <param>
       <key>tr_level</key>
       <value>0.0</value>
     </param>
     <param>
-      <key>tr_delay</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
       <key>tr_tag</key>
-      <value>packet_len</value>
+      <value>"corr_est"</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Correlation</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>ymax</key>
+      <value>150</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-150</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label2</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>_enabled</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(576, 659)</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0_1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha3</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style1</key>
+      <value>3</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha3</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style7</key>
+      <key>style3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha7</key>
+      <key>alpha4</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>style4</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>style5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha9</key>
+      <key>alpha6</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>style6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha7</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 627)</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>chan_rx_data</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 571)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>id</key>
-      <value>digital_pfb_clock_sync_xxx_0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>loop_bw</key>
-      <value>6.28/100.0</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>taps</key>
-      <value>rx_rrc_taps</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>nfilts</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>init_phase</key>
-      <value>nfilts/2</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>1.5</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>osps</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>size</key>
+      <value>125</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_delay</key>
+      <value>5</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(280, 579)</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0_0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>tr_tag</key>
+      <value>"time_est"</value>
     </param>
     <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
       <key>ylabel</key>
-      <value>Correlation</value>
+      <value>Amplitude</value>
     </param>
     <param>
       <key>yunit</key>
       <value>""</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-150</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>150</value>
+      <key>_coordinate</key>
+      <value>(1360, 11)</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>id</key>
+      <value>tab0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,0,1,1</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>50</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
       <key>label2</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <value>Const.</value>
     </param>
     <param>
       <key>label3</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker3</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <value>Tab 3</value>
     </param>
     <param>
       <key>label4</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color4</key>
-      <value>"black"</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha4</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color5</key>
-      <value>"cyan"</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha5</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha6</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color7</key>
-      <value>"yellow"</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha7</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color8</key>
-      <value>"dark red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha8</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
-    </param>
-    <param>
-      <key>style9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker9</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width10</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color10</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>style10</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker10</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha10</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(48, 715)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_constellation_decoder_cb</key>
-    <param>
-      <key>id</key>
-      <value>digital_constellation_decoder_cb_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>constellation</key>
-      <value>Const_HDR</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(728, 579)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
-    <param>
-      <key>id</key>
-      <value>tab0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>label0</key>
-      <value>Time</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value>Freq.</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value>Const.</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value>Tab 3</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value>Tab 4</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value>Tab 5</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value>Tab 8</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value>Tab 9</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value>Tab 10</value>
-    </param>
-    <param>
-      <key>label11</key>
-      <value>Tab 11</value>
-    </param>
-    <param>
-      <key>label12</key>
-      <value>Tab 12</value>
-    </param>
-    <param>
-      <key>label13</key>
-      <value>Tab 13</value>
-    </param>
-    <param>
-      <key>label14</key>
-      <value>Tab 14</value>
-    </param>
-    <param>
-      <key>label15</key>
-      <value>Tab 15</value>
-    </param>
-    <param>
-      <key>label16</key>
-      <value>Tab 16</value>
-    </param>
-    <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
-    </param>
-    <param>
-      <key>label19</key>
-      <value>Tab 19</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>1,1,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(488, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>freq_offset</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Freq. Offset</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,1,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(600, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
-    <param>
-      <key>id</key>
-      <value>tab1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_tabs</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>label0</key>
-      <value>Time</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value>Freq.</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value>Const.</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value>Tab 3</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value>Tab 4</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value>Tab 5</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value>Tab 6</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value>Tab 7</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value>Tab 8</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value>Tab 9</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value>Tab 10</value>
-    </param>
-    <param>
-      <key>label11</key>
-      <value>Tab 11</value>
-    </param>
-    <param>
-      <key>label12</key>
-      <value>Tab 12</value>
-    </param>
-    <param>
-      <key>label13</key>
-      <value>Tab 13</value>
-    </param>
-    <param>
-      <key>label14</key>
-      <value>Tab 14</value>
-    </param>
-    <param>
-      <key>label15</key>
-      <value>Tab 15</value>
-    </param>
-    <param>
-      <key>label16</key>
-      <value>Tab 16</value>
-    </param>
-    <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
-    </param>
-    <param>
-      <key>label19</key>
-      <value>Tab 19</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>1,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(624, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_tag_debug</key>
-    <param>
-      <key>id</key>
-      <value>blocks_tag_debug_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value></value>
-    </param>
-    <param>
-      <key>filter</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>num_inputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>display</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(520, 667)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_corr_est_cc</key>
-    <param>
-      <key>id</key>
-      <value>digital_corr_est_cc_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>symbols</key>
-      <value>modulated_sync_word</value>
-    </param>
-    <param>
-      <key>sps</key>
-      <value>sps</value>
-    </param>
-    <param>
-      <key>mark_delay</key>
-      <value>mark_delay</value>
-    </param>
-    <param>
-      <key>threshold</key>
-      <value>0.9</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(48, 619)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>time_offset</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Time Offset</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0.99</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>1.01</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.00001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(712, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>noise</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Noise Amp</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>5</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>0.001</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>0,0,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(488, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_random_pdu</key>
-    <param>
-      <key>id</key>
-      <value>blocks_random_pdu_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>minsize</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>maxsize</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>mask</key>
-      <value>0xFF</value>
-    </param>
-    <param>
-      <key>length_modulo</key>
-      <value>2</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(208, 67)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_packet_formatter_default</key>
-    <param>
-      <key>id</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>access_code</key>
-      <value>digital.packet_utils.default_access_code</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1064, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>mark_delay</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Mark Delay</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>int</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>33</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value>2,2,1,1</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(824, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>digital_packet_format_async</key>
-    <param>
-      <key>id</key>
-      <value>digital_packet_format_async_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>formatter</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 232)</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <block>
-    <key>digital_burst_shaper_xx</key>
+    <key>qtgui_tab_widget</key>
     <param>
-      <key>id</key>
-      <value>digital_burst_shaper_xx_0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(1224, 11)</value>
     </param>
     <param>
-      <key>window</key>
-      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
+      <key>gui_hint</key>
+      <value>1,2,1,1</value>
     </param>
     <param>
-      <key>pre_padding</key>
-      <value>20</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>post_padding</key>
-      <value>20</value>
+      <key>id</key>
+      <value>tab1</value>
     </param>
     <param>
-      <key>insert_phasing</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>length_tag_name</key>
-      <value>packet_len</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(448, 379)</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_parse_x</key>
     <param>
-      <key>id</key>
-      <value>digital_packet_parse_x_0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>type</key>
-      <value>b</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(952, 571)</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <block>
-    <key>blocks_message_debug</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_debug_0_0_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(16, 443)</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1184, 584)</value>
+      <key>id</key>
+      <value>virtual_source_0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
   </block>
   <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
-    <source_key>payload</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
-    <source_key>header</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rx_mod_header</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rx_mod_payload</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_crc32_async_bb_1</source_block_id>
-    <sink_block_id>fec_async_encoder_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_random_pdu_0</source_block_id>
-    <sink_block_id>digital_crc32_async_bb_1</sink_block_id>
-    <source_key>pdus</source_key>
-    <sink_key>in</sink_key>
-  </connection>
-  <connection>
     <source_block_id>blocks_message_strobe_0</source_block_id>
     <sink_block_id>blocks_random_pdu_0</sink_block_id>
     <source_key>strobe</source_key>
     <sink_key>generate</sink_key>
   </connection>
   <connection>
-    <source_block_id>fec_async_encoder_0</source_block_id>
-    <sink_block_id>digital_packet_format_async_1</sink_block_id>
-    <source_key>out</source_key>
+    <source_block_id>blocks_random_pdu_0</source_block_id>
+    <sink_block_id>packet_tx_0</sink_block_id>
+    <source_key>pdus</source_key>
     <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>chan_rx_data</source_block_id>
-    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
-    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>chan_data</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1_0</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
-    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
-    <sink_block_id>mod_payload</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>packet_rx_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
+    <source_key>5</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
-    <sink_block_id>mod_header</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>packet_rx_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_1</sink_block_id>
+    <source_key>2</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
-    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>packet_rx_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
+    <source_key>pkt out</source_key>
+    <sink_key>print_pdu</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
-    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>packet_rx_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <source_block_id>packet_rx_0</source_block_id>
     <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <source_block_id>packet_rx_0</source_block_id>
     <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
-    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <source_block_id>packet_tx_0</source_block_id>
     <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>chan_data</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_block_id>virtual_source_0</source_block_id>
+    <sink_block_id>packet_rx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
-  <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
-    <source_key>1</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_parse_x_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
-    <source_key>info</source_key>
-    <sink_key>print</sink_key>
-  </connection>
 </flow_graph>
diff --git a/gr-digital/examples/packet/packet_rx.grc 
b/gr-digital/examples/packet/packet_rx.grc
new file mode 100644
index 0000000..e2369c6
--- /dev/null
+++ b/gr-digital/examples/packet/packet_rx.grc
@@ -0,0 +1,1946 @@
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
+<flow_graph>
+  <timestamp>Thu Mar 10 17:25:47 2016</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value></value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Packet Operators</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>hb</value>
+    </param>
+    <param>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>packet_rx</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>qt_qss_theme</key>
+      <value></value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>title</key>
+      <value></value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(152, 323)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>mark_delay</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>33</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_modulate_vector</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>data</key>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>[1]</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(56, 539)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>modulated_sync_word</value>
+    </param>
+    <param>
+      <key>mod</key>
+      <value>rxmod</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(400, 331)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>32</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(56, 411)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>preamble</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(56, 475)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>rxmod</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.generic_mod(hdr_const, False, sps, True, eb, False, 
False)</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1184, 121)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1184, 265)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(864, 329)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0_0_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(664, 273)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0_0_0_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(232, 145)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0_0_0_1</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(416, 441)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_null_sink_0_0_0_1_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tag_debug</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>display</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(864, 427)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_tag_debug_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>filter</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value></value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_to_pdu</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1016, 419)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_tagged_stream_to_pdu_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>tag</key>
+      <value>"payload bits"</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(192, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>dec</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>FEC Decoder</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value> fec.dummy_decoder.make(8000)</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_constellation_decoder_cb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>constellation</key>
+      <value>hdr_const</value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1312, 195)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_constellation_decoder_cb_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_constellation_soft_decoder_cf</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>constellation</key>
+      <value>pld_const</value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1440, 267)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_constellation_soft_decoder_cf_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_corr_est_cc</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(152, 227)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_corr_est_cc_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>symbols</key>
+      <value>modulated_sync_word</value>
+    </param>
+    <param>
+      <key>mark_delay</key>
+      <value>mark_delay</value>
+    </param>
+    <param>
+      <key>threshold</key>
+      <value>0.9</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_costas_loop_cc</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(656, 193)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_costas_loop_cc_0_0</value>
+    </param>
+    <param>
+      <key>w</key>
+      <value>6.28/100.0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>order</key>
+      <value>hdr_const.arity()</value>
+    </param>
+    <param>
+      <key>use_snr</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1440, 419)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_crc32_async_bb_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>check</key>
+      <value>True</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_header_payload_demux</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(936, 179)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>guard_interval</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>header_len</key>
+      <value>formatter.header_nbits()</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_header_payload_demux_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>items_per_symbol</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>length_tag_key</key>
+      <value>"payload bits"</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>output_symbols</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>special_tags</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>timing_tag_key</key>
+      <value>"rx_time"</value>
+    </param>
+    <param>
+      <key>trigger_tag_key</key>
+      <value>"time_est"</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_packet_parse_x</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>formatter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1576, 187)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_packet_parse_x_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>threshold</key>
+      <value>3</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>b</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_pfb_clock_sync_xxx</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>filter_size</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 187)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_pfb_clock_sync_xxx_0</value>
+    </param>
+    <param>
+      <key>init_phase</key>
+      <value>nfilts/2</value>
+    </param>
+    <param>
+      <key>loop_bw</key>
+      <value>6.28/100.0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max_dev</key>
+      <value>1.5</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>osps</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>sps</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>psf_taps</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>ccf</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1224, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>eb</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Filter Rolloff</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.35</value>
+    </param>
+  </block>
+  <block>
+    <key>fec_async_decoder</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>decoder</key>
+      <value>dec</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1248, 411)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>fec_async_decoder_0</value>
+    </param>
+    <param>
+      <key>mtu</key>
+      <value>1500</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>packed</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>rev_pack</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(736, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>formatter</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Packet Formatter</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      
<value>digital.packet_formatter_default(digital.packet_utils.default_access_code)</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(376, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>hdr_const</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Header constellation</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.constellation_calcdist((digital.psk_2()[0]), 
(digital.psk_2()[1]), 2, 1).base()</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1616, 419)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>message</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>pkt out</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1440, 467)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_1</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>message</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>precrc</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1184, 155)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_2</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>hdr_out</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1184, 299)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_3</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>pld_out</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(864, 363)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_4</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>phase</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(664, 307)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_5</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>timing</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(216, 179)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_6</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>corr out</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(416, 475)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_7</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>corr est</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_source</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 251)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_source_0</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>in</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(552, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pld_const</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Payload constellation</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.constellation_calcdist((digital.psk_2()[0]), 
(digital.psk_2()[1]), 2, 1).base()</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1072, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>psf_taps</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Pulse Shape Filter</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[0,]</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(912, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Samples per Symbol</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
+    <sink_block_id>fec_async_decoder_0</sink_block_id>
+    <source_key>pdus</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
+    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_constellation_soft_decoder_cf_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_to_pdu_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0_0_0_1_0</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>pad_sink_7</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0_0_0_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>pad_sink_6</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>pad_sink_4</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_crc32_async_bb_0</source_block_id>
+    <sink_block_id>pad_sink_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>pad_sink_2</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0_0</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>digital_constellation_soft_decoder_cf_0</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_header_payload_demux_0</source_block_id>
+    <sink_block_id>pad_sink_3</sink_block_id>
+    <source_key>1</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_parse_x_0</source_block_id>
+    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
+    <source_key>info</source_key>
+    <sink_key>header_data</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>blocks_null_sink_0_0_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>pad_sink_5</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fec_async_decoder_0</source_block_id>
+    <sink_block_id>digital_crc32_async_bb_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fec_async_decoder_0</source_block_id>
+    <sink_block_id>pad_sink_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pad_source_0</source_block_id>
+    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>
diff --git a/gr-digital/examples/packet/packet_tx.grc 
b/gr-digital/examples/packet/packet_tx.grc
new file mode 100644
index 0000000..a03df91
--- /dev/null
+++ b/gr-digital/examples/packet/packet_tx.grc
@@ -0,0 +1,1478 @@
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
+<flow_graph>
+  <timestamp>Thu Mar 10 17:16:22 2016</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value></value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Packet Operators</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>hb</value>
+    </param>
+    <param>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>packet_tx</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>qt_qss_theme</key>
+      <value></value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>title</key>
+      <value></value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(680, 435)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>32</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(320, 251)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_pdu_to_tagged_stream_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>tag</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(320, 179)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_pdu_to_tagged_stream_0_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>tag</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>hdr_const.bits_per_symbol()</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(544, 171)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_repack_bits_bb_0</value>
+    </param>
+    <param>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
+    <param>
+      <key>k</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>l</key>
+      <value>pld_const.bits_per_symbol()</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(544, 243)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_repack_bits_bb_0_0</value>
+    </param>
+    <param>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>align_output</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_multiply_length</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(936, 369)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_tagged_stream_multiply_length_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>c</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_mux</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(216, 353)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_tagged_stream_mux_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ninputs</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>tag_preserve_head_pos</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_burst_shaper_xx</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(448, 331)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_burst_shaper_xx_0</value>
+    </param>
+    <param>
+      <key>insert_phasing</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>length_tag_name</key>
+      <value>packet_len</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>post_padding</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>pre_padding</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>window</key>
+      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>dimension</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(872, 171)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0</value>
+    </param>
+    <param>
+      <key>in_type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>num_ports</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>out_type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>symbol_table</key>
+      <value>hdr_const.points()</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>dimension</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(872, 243)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0_0</value>
+    </param>
+    <param>
+      <key>in_type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>num_ports</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>out_type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>symbol_table</key>
+      <value>pld_const.points()</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(312, 107)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_crc32_async_bb_1</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>check</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(744, 179)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_map_bb_1</value>
+    </param>
+    <param>
+      <key>map</key>
+      <value>hdr_const.pre_diff_code()</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(744, 251)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_map_bb_1_0</value>
+    </param>
+    <param>
+      <key>map</key>
+      <value>pld_const.pre_diff_code()</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_packet_format_async</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>formatter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(64, 201)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>digital_packet_format_async_1</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(192, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>enc</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>FEC encoder</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value> fec.dummy_encoder_make(8000)</value>
+    </param>
+  </block>
+  <block>
+    <key>fec_async_encoder</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>encoder</key>
+      <value>enc</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(64, 99)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>fec_async_encoder_0</value>
+    </param>
+    <param>
+      <key>mtu</key>
+      <value>1500</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>packed</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>rev_pack</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>rev_unpack</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(728, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>formatter</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Packet Formatter</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      
<value>digital.packet_formatter_default(digital.packet_utils.default_access_code)</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(376, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>hdr_const</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Header constellation</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.constellation_calcdist((digital.psk_2()[0]), 
(digital.psk_2()[1]), 2, 1).base()</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1080, 179)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>mod_header</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Mod Header</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1080, 251)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>mod_payload</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_sink</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1224, 379)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_sink_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>out</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pad_source</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(504, 107)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pad_source_0</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>in</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>optional</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>message</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>pfb_arb_resampler_xxx</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(680, 339)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pfb_arb_resampler_xxx_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>nfilts</key>
+      <value>nfilts</value>
+    </param>
+    <param>
+      <key>rrate</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>atten</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>psf_taps</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>ccf</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(552, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>pld_const</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Payload constellation</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.constellation_calcdist((digital.psk_2()[0]), 
(digital.psk_2()[1]), 2, 1).base()</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1064, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>psf_taps</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Pulse Shape Filter</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>[0,]</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(16, 331)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>rx_mod_header</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Mod Header</value>
+    </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(16, 379)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>rx_mod_payload</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(904, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Samples per Symbol</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
+    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
+    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <sink_block_id>pad_sink_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
+    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
+    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id>
+    <sink_block_id>mod_header</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
+    <sink_block_id>mod_payload</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_crc32_async_bb_1</source_block_id>
+    <sink_block_id>fec_async_encoder_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_map_bb_1</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_map_bb_1_0</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
+    <source_key>header</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
+    <source_key>payload</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>fec_async_encoder_0</source_block_id>
+    <sink_block_id>digital_packet_format_async_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pad_source_0</source_block_id>
+    <sink_block_id>digital_crc32_async_bb_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>rx_mod_header</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>rx_mod_payload</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
+  </connection>
+</flow_graph>
diff --git a/gr-digital/examples/packet/parse_packet_header.grc 
b/gr-digital/examples/packet/parse_packet_header.grc
index fa5fd53..f37c69f 100644
--- a/gr-digital/examples/packet/parse_packet_header.grc
+++ b/gr-digital/examples/packet/parse_packet_header.grc
@@ -1,23 +1,23 @@
-<?xml version='1.0' encoding='ASCII'?>
-<?grc format='1' created='3.7.8'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.10'?>
 <flow_graph>
   <timestamp>Thu Dec  4 14:34:25 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>parse_packet_header</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>window_size</key>
+      <value>2000,2000</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>category</key>
+      <value>Custom</value>
     </param>
     <param>
-      <key>author</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -25,325 +25,379 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>2000,2000</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(8, 11)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>parse_packet_header</value>
     </param>
     <param>
       <key>max_nouts</key>
       <value>0</value>
     </param>
     <param>
+      <key>qt_qss_theme</key>
+      <value></value>
+    </param>
+    <param>
       <key>realtime_scheduling</key>
       <value></value>
     </param>
     <param>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>thread_safe_setters</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>title</key>
       <value></value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(8, 11)</value>
+      <value>(576, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>sps</value>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_2()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1064, 67)</value>
+      <value>(736, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>preamble</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_2()[1]</value>
     </param>
+  </block>
+  <block>
+    <key>variable_constellation</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>const_points</key>
+      <value>digital.psk_4()[0]</value>
+    </param>
+    <param>
+      <key>dims</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 3)</value>
+      <value>(896, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rxmod</value>
+      <value>Const_PLD</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>rot_sym</key>
+      <value>4</value>
     </param>
     <param>
-      <key>value</key>
-      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+      <key>soft_dec_lut</key>
+      <value>'auto'</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>precision</key>
+      <value>8</value>
+    </param>
+    <param>
+      <key>sym_map</key>
+      <value>digital.psk_4()[1]</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_cc_decoder_def</key>
+    <param>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1432, 67)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>nfilts</value>
+      <key>dim2</key>
+      <value>4</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>32</value>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>state_end</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1136, 67)</value>
+      <value>(1416, 955)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rate</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>2</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1344, 995)</value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>state_start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
+    </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_dummy_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>rep</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>3</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1248, 1059)</value>
+      <value>(1024, 859)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>polys</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>dec</value>
     </param>
     <param>
       <key>value</key>
-      <value>[109, 79]</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1320, 1059)</value>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>ndim</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_repetition_decoder_def</key>
     <param>
-      <key>id</key>
-      <value>k</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>7</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1272, 995)</value>
+      <value>(1216, 875)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>eb</value>
+      <value>dec</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>"ok"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.22</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>rep</key>
+      <value>rep</value>
+    </param>
+    <param>
+      <key>prob</key>
+      <value>0.5</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
       <value>(1208, 67)</value>
     </param>
@@ -351,2947 +405,2993 @@
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>formatter</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <value>eb</value>
     </param>
     <param>
       <key>value</key>
-      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
+      <value>0.22</value>
     </param>
+  </block>
+  <block>
+    <key>variable_cc_encoder_def</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>padding</key>
+      <value>False</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(896, 131)</value>
+      <key>k</key>
+      <value>k</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>rx_mod_header</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
+      <value>False</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(16, 379)</value>
+      <value>(1416, 779)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
     <param>
       <key>id</key>
-      <value>rx_mod_payload</value>
+      <value>enc</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>polys</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>rate</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(16, 427)</value>
+      <key>state_start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>mode</key>
+      <value>fec.CC_TERMINATED</value>
     </param>
   </block>
   <block>
-    <key>variable_constellation</key>
+    <key>variable_dummy_encoder_def</key>
     <param>
-      <key>id</key>
-      <value>Const_PLD</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(1024, 779)</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>id</key>
+      <value>enc</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable_repetition_encoder_def</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(736, 3)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dim1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_constellation</key>
     <param>
-      <key>id</key>
-      <value>Const_PLD</value>
+      <key>dim2</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>False</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_4()[1]</value>
+      <key>framebits</key>
+      <value>8000</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_4()[0]</value>
+      <key>_coordinate</key>
+      <value>(1216, 779)</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>4</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>id</key>
+      <value>enc</value>
     </param>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>ndim</key>
+      <value>0</value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>rep</key>
+      <value>rep</value>
     </param>
+  </block>
+  <block>
+    <key>variable_packet_formatter_default</key>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>access_code</key>
+      <value>digital.packet_utils.default_access_code</value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(896, 3)</value>
+      <value>(1064, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>formatter</value>
+    </param>
   </block>
   <block>
-    <key>variable_constellation</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>Const_HDR</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
-      <key>sym_map</key>
-      <value>digital.psk_2()[1]</value>
+      <key>_coordinate</key>
+      <value>(896, 131)</value>
     </param>
     <param>
-      <key>const_points</key>
-      <value>digital.psk_2()[0]</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rot_sym</key>
-      <value>2</value>
+      <key>id</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>dims</key>
-      <value>1</value>
+      <key>value</key>
+      
<value>digital.packet_formatter_counter(digital.packet_utils.default_access_code,
 Const_PLD.bits_per_symbol())</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>precision</key>
-      <value>8</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>soft_dec_lut</key>
-      <value>'auto'</value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(600, 875)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(576, 3)</value>
+      <key>gui_hint</key>
+      <value>0,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_crc32_async_bb</key>
     <param>
       <key>id</key>
-      <value>digital_crc32_async_bb_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>check</key>
-      <value>False</value>
+      <key>label</key>
+      <value>Freq. Offset</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>start</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(424, 91)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>fec_async_encoder</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>fec_async_encoder_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>encoder</key>
-      <value>enc</value>
-    </param>
-    <param>
-      <key>packed</key>
-      <value>True</value>
+      <key>_coordinate</key>
+      <value>(1272, 995)</value>
     </param>
     <param>
-      <key>rev_unpack</key>
-      <value>False</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rev_pack</key>
-      <value>False</value>
+      <key>id</key>
+      <value>k</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>value</key>
+      <value>7</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>value</key>
+      <value>33</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(824, 875)</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 171)</value>
+      <key>gui_hint</key>
+      <value>2,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>180</value>
+      <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>label</key>
+      <value>Mark Delay</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dim2</key>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
-    </param>
-    <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>stop</key>
+      <value>200</value>
     </param>
     <param>
-      <key>prob</key>
-      <value>0.5</value>
+      <key>rangeType</key>
+      <value>int</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
+  </block>
+  <block>
+    <key>variable_modulate_vector</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 875)</value>
+      <key>data</key>
+      <value>preamble</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_encoder_def</key>
     <param>
-      <key>id</key>
-      <value>enc</value>
+      <key>taps</key>
+      <value>[1]</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(1432, 131)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>id</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>mod</key>
+      <value>rxmod</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>_coordinate</key>
+      <value>(1136, 67)</value>
     </param>
     <param>
-      <key>state_start</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>value</key>
+      <value>32</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1416, 779)</value>
+      <value>(488, 875)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,0,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_dummy_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>noise</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Noise Amp</value>
     </param>
     <param>
-      <key>ndim</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>step</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1024, 779)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>variable_dummy_decoder_def</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>dec</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>"ok"</value>
+      <key>_coordinate</key>
+      <value>(1320, 1059)</value>
     </param>
     <param>
-      <key>ndim</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>id</key>
+      <value>polys</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>value</key>
+      <value>[109, 79]</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1024, 859)</value>
+      <value>(1432, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_repetition_encoder_def</key>
     <param>
       <key>id</key>
-      <value>enc</value>
+      <value>preamble</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>value</key>
+      <value>[0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc]</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>ndim</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(1344, 995)</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>rep</key>
-      <value>rep</value>
+      <key>id</key>
+      <value>rate</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>value</key>
+      <value>2</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1216, 779)</value>
+      <value>(1248, 1059)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_cc_decoder_def</key>
     <param>
       <key>id</key>
-      <value>dec</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <value>rep</value>
     </param>
     <param>
       <key>value</key>
-      <value>"ok"</value>
-    </param>
-    <param>
-      <key>ndim</key>
-      <value>0</value>
+      <value>3</value>
     </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
     <param>
-      <key>dim1</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dim2</key>
-      <value>4</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>framebits</key>
-      <value>8000</value>
+      <key>alpha</key>
+      <value>eb</value>
     </param>
     <param>
-      <key>k</key>
-      <value>k</value>
+      <key>_coordinate</key>
+      <value>(1296, 131)</value>
     </param>
     <param>
-      <key>rate</key>
-      <value>rate</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>polys</key>
-      <value>polys</value>
+      <key>gain</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>state_start</key>
-      <value>0</value>
+      <key>id</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>state_end</key>
-      <value>-1</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>mode</key>
-      <value>fec.CC_TERMINATED</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>padding</key>
-      <value>False</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1416, 955)</value>
+      <value>(1432, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>rxmod</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>digital.generic_mod(Const_HDR, False, sps, True, eb, False, 
False)</value>
+    </param>
   </block>
   <block>
-    <key>variable_modulate_vector</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>modulated_sync_word</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>mod</key>
-      <value>rxmod</value>
+      <key>_coordinate</key>
+      <value>(1064, 67)</value>
     </param>
     <param>
-      <key>data</key>
-      <value>preamble</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>[1]</value>
+      <key>id</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>value</key>
+      <value>2</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1432, 131)</value>
+      <value>(712, 875)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_strobe</key>
     <param>
       <key>id</key>
-      <value>blocks_message_strobe_0</value>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Time Offset</value>
     </param>
     <param>
-      <key>msg</key>
-      <value>pmt.intern("TEST")</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>period</key>
-      <value>1000</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>start</key>
+      <value>0.99</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>step</key>
+      <value>0.00001</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>stop</key>
+      <value>1.01</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>eb</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(24, 83)</value>
+      <value>(1296, 3)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
+    <param>
+      <key>gain</key>
+      <value>nfilts</value>
+    </param>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0_0</value>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ntaps</key>
+      <value>5*sps*nfilts</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>samp_rate</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <key>sym_rate</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_debug</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 211)</value>
+      <value>(1184, 585)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>id</key>
-      <value>blocks_pdu_to_tagged_stream_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>tag</key>
-      <value>packet_len</value>
+      <value>blocks_message_debug_0_0_0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_message_strobe</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(336, 283)</value>
+      <value>(24, 83)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
       <key>id</key>
-      <value>blocks_repack_bits_bb_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>k</key>
-      <value>8</value>
+      <value>blocks_message_strobe_0</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_HDR.bits_per_symbol()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>len_tag_key</key>
-      <value>packet_len</value>
+      <key>msg</key>
+      <value>pmt.intern("TEST")</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>period</key>
+      <value>1000</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 203)</value>
+      <value>(336, 283)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_pdu_to_tagged_stream_0</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_HDR.pre_diff_code()</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_pdu_to_tagged_stream</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(760, 211)</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>id</key>
-      <value>blocks_repack_bits_bb_0_0</value>
+      <key>_coordinate</key>
+      <value>(336, 211)</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>k</key>
-      <value>8</value>
+      <key>id</key>
+      <value>blocks_pdu_to_tagged_stream_0_0</value>
     </param>
     <param>
-      <key>l</key>
-      <value>Const_PLD.bits_per_symbol()</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>len_tag_key</key>
+      <key>tag</key>
       <value>packet_len</value>
     </param>
     <param>
-      <key>align_output</key>
-      <value>False</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_MSB_FIRST</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_random_pdu</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>mask</key>
+      <value>0xFF</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(560, 275)</value>
+      <value>(208, 67)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_map_bb</key>
     <param>
       <key>id</key>
-      <value>digital_map_bb_1_0</value>
+      <value>blocks_random_pdu_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>length_modulo</key>
+      <value>2</value>
     </param>
     <param>
-      <key>map</key>
-      <value>Const_PLD.pre_diff_code()</value>
+      <key>maxsize</key>
+      <value>20</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>minsize</key>
+      <value>20</value>
     </param>
     <param>
       <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>k</key>
+      <value>8</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>l</key>
+      <value>Const_HDR.bits_per_symbol()</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(760, 283)</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>mod_header</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Header</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1120, 211)</value>
+      <value>(560, 203)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0_0</value>
+      <value>blocks_repack_bits_bb_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_PLD.points()</value>
+      <key>align_output</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_repack_bits_bb</key>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>k</key>
+      <value>8</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>l</key>
+      <value>Const_PLD.bits_per_symbol()</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>endianness</key>
+      <value>gr.GR_MSB_FIRST</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 275)</value>
+      <value>(560, 275)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_chunks_to_symbols_xx</key>
     <param>
       <key>id</key>
-      <value>digital_chunks_to_symbols_xx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>in_type</key>
-      <value>byte</value>
+      <value>blocks_repack_bits_bb_0_0</value>
     </param>
     <param>
-      <key>out_type</key>
-      <value>complex</value>
+      <key>len_tag_key</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>symbol_table</key>
-      <value>Const_HDR.points()</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dimension</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>align_output</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tag_debug</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>display</key>
+      <value>True</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(896, 203)</value>
+      <value>(520, 667)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
       <key>id</key>
-      <value>mod_payload</value>
+      <value>blocks_tag_debug_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Mod Payload</value>
+      <key>filter</key>
+      <value>""</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>name</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1120, 283)</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
   </block>
   <block>
-    <key>blocks_tagged_stream_mux</key>
+    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_mux_0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>_coordinate</key>
+      <value>(936, 417)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_tagged_stream_multiply_length_0</value>
+    </param>
+    <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>ninputs</key>
-      <value>2</value>
+      <key>c</key>
+      <value>sps</value>
     </param>
     <param>
       <key>lengthtagname</key>
       <value>packet_len</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tag_preserve_head_pos</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_tagged_stream_mux</key>
     <param>
-      <key>affinity</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(216, 400)</value>
+      <value>(216, 401)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>tx_rrc_taps</value>
+      <value>blocks_tagged_stream_mux_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>lengthtagname</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>ninputs</key>
+      <value>2</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>tag_preserve_head_pos</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1296, 3)</value>
+      <value>(1216, 523)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
       <key>id</key>
-      <value>qtgui_freq_sink_x_0_0</value>
+      <value>chan_data</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>freqhalf</key>
-      <value>True</value>
+      <key>_coordinate</key>
+      <value>(48, 571)</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>id</key>
+      <value>chan_rx_data</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>stream_id</key>
+      <value>Chan Data</value>
     </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>block_tags</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>epsilon</key>
+      <value>time_offset</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_coordinate</key>
+      <value>(1224, 395)</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>id</key>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>noise_voltage</key>
+      <value>noise</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>seed</key>
+      <value>0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>taps</key>
+      <value>1.0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_burst_shaper_xx</key>
     <param>
-      <key>label1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>alpha1</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label2</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(448, 379)</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_burst_shaper_xx_0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>insert_phasing</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>length_tag_name</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>post_padding</key>
+      <value>20</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>pre_padding</key>
+      <value>20</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>window</key>
+      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
+      <key>dimension</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(896, 203)</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width8</key>
+      <key>num_ports</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>out_type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>symbol_table</key>
+      <value>Const_HDR.points()</value>
     </param>
+  </block>
+  <block>
+    <key>digital_chunks_to_symbols_xx</key>
     <param>
-      <key>label9</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
-    </param>
-    <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label10</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>dimension</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(896, 275)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_chunks_to_symbols_xx_0_0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>in_type</key>
+      <value>byte</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 707)</value>
+      <key>num_ports</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>out_type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>symbol_table</key>
+      <value>Const_PLD.points()</value>
     </param>
   </block>
   <block>
-    <key>digital_costas_loop_cc</key>
+    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>id</key>
-      <value>digital_costas_loop_cc_0_0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>w</key>
-      <value>6.28/100.0</value>
+      <key>constellation</key>
+      <value>Const_HDR</value>
     </param>
     <param>
-      <key>order</key>
-      <value>Const_HDR.arity()</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>use_snr</key>
-      <value>False</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(728, 579)</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>id</key>
+      <value>digital_constellation_decoder_cb_0</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>digital_corr_est_cc</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(512, 584)</value>
+      <value>(48, 619)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
       <key>id</key>
-      <value>qtgui_const_sink_x_0_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>digital_corr_est_cc_0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>800</value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>symbols</key>
+      <value>modulated_sync_word</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>mark_delay</key>
+      <value>mark_delay</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>threshold</key>
+      <value>0.9</value>
     </param>
+  </block>
+  <block>
+    <key>digital_costas_loop_cc</key>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>_coordinate</key>
+      <value>(512, 585)</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>id</key>
+      <value>digital_costas_loop_cc_0_0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>w</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>order</key>
+      <value>Const_HDR.arity()</value>
     </param>
     <param>
-      <key>legend</key>
+      <key>use_snr</key>
       <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_crc32_async_bb</key>
     <param>
-      <key>label1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(424, 91)</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>digital_crc32_async_bb_1</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker2</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>check</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>label3</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(760, 211)</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_map_bb_1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>map</key>
+      <value>Const_HDR.pre_diff_code()</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_map_bb</key>
     <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
+      <key>_coordinate</key>
+      <value>(760, 283)</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>alpha5</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_map_bb_1_0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
+      <key>map</key>
+      <value>Const_PLD.pre_diff_code()</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker6</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_format_async</key>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label7</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color7</key>
-      <value>"red"</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(80, 232)</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>digital_packet_format_async_1</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker8</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_packet_parse_x</key>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label9</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style9</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>0</value>
+      <key>formatter</key>
+      <value>formatter</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(952, 571)</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>id</key>
+      <value>digital_packet_parse_x_0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>threshold</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>b</value>
     </param>
+  </block>
+  <block>
+    <key>digital_pfb_clock_sync_xxx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>filter_size</key>
+      <value>nfilts</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(728, 787)</value>
+      <value>(280, 579)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_rrc_filter_taps</key>
     <param>
       <key>id</key>
-      <value>rx_rrc_taps</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>digital_pfb_clock_sync_xxx_0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>nfilts</value>
+      <key>init_phase</key>
+      <value>nfilts/2</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>nfilts</value>
+      <key>loop_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>eb</value>
+      <key>max_dev</key>
+      <value>1.5</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>5*sps*nfilts</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>osps</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>sps</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1296, 131)</value>
+      <key>taps</key>
+      <value>rx_rrc_taps</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>type</key>
+      <value>ccf</value>
     </param>
   </block>
   <block>
-    <key>pfb_arb_resampler_xxx</key>
+    <key>fec_async_encoder</key>
     <param>
-      <key>id</key>
-      <value>pfb_arb_resampler_xxx_0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>encoder</key>
+      <value>enc</value>
     </param>
     <param>
-      <key>rrate</key>
-      <value>sps</value>
+      <key>_coordinate</key>
+      <value>(80, 171)</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>tx_rrc_taps</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>nfilts</key>
-      <value>nfilts</value>
+      <key>id</key>
+      <value>fec_async_encoder_0</value>
     </param>
     <param>
-      <key>atten</key>
-      <value>100</value>
+      <key>mtu</key>
+      <value>1500</value>
     </param>
     <param>
-      <key>samp_delay</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>packed</key>
+      <value>True</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>rev_pack</key>
+      <value>False</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>rev_unpack</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_sink</key>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(680, 387)</value>
+      <value>(1120, 211)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>mod_header</value>
+    </param>
+    <param>
+      <key>stream_id</key>
+      <value>Mod Header</value>
+    </param>
   </block>
   <block>
-    <key>channels_channel_model</key>
+    <key>virtual_sink</key>
     <param>
-      <key>id</key>
-      <value>channels_channel_model_0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>noise_voltage</key>
-      <value>noise</value>
-    </param>
-    <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
-    </param>
-    <param>
-      <key>epsilon</key>
-      <value>time_offset</value>
+      <key>_coordinate</key>
+      <value>(1120, 283)</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>0</value>
+      <key>id</key>
+      <value>mod_payload</value>
     </param>
     <param>
-      <key>block_tags</key>
-      <value>False</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>pfb_arb_resampler_xxx</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1224, 395)</value>
+      <value>(680, 387)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
     <param>
       <key>id</key>
-      <value>chan_data</value>
+      <value>pfb_arb_resampler_xxx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>nfilts</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1216, 523)</value>
+      <key>rrate</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>samp_delay</key>
+      <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>atten</key>
+      <value>100</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>taps</key>
+      <value>tx_rrc_taps</value>
     </param>
     <param>
       <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <value>ccf</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>size</key>
-      <value>2500</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>_coordinate</key>
+      <value>(1480, 515)</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>marker1</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>style1</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>marker3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>style3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>style5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>marker6</key>
+      <value>0</value>
     </param>
     <param>
       <key>style6</key>
-      <value>1</value>
+      <value>0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha6</key>
+      <key>alpha7</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color7</key>
+      <value>"red"</value>
+    </param>
+    <param>
       <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>style7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style7</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>marker8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>style8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style8</key>
+      <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 355)</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>freqhalf</key>
+      <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>_coordinate</key>
+      <value>(728, 787)</value>
     </param>
     <param>
-      <key>fc</key>
-      <value>0</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
       <key>grid</key>
       <value>False</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0_0_0</value>
+    </param>
+    <param>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>marker1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>style1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>showports</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>color10</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>marker10</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>style10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>marker2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>style2</key>
+      <value>0</value>
     </param>
     <param>
       <key>width2</key>
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label3</key>
       <value></value>
     </param>
     <param>
+      <key>marker3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style3</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width3</key>
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
-    </param>
+      <key>marker4</key>
+      <value>0</value>
+    </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color5</key>
+      <value>"red"</value>
+    </param>
+    <param>
       <key>label5</key>
       <value></value>
     </param>
     <param>
+      <key>marker5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style5</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label6</key>
       <value></value>
     </param>
     <param>
+      <key>marker6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style6</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label7</key>
       <value></value>
     </param>
     <param>
+      <key>marker7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style7</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label8</key>
       <value></value>
     </param>
     <param>
+      <key>marker8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>style8</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>style9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>size</key>
+      <value>800</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 435)</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>fc</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>fftsize</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1480, 435)</value>
     </param>
     <param>
       <key>gui_hint</key>
-      <value>address@hidden</value>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
       <key>label1</key>
@@ -3302,22 +3402,30 @@
       <value>1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>0</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha1</key>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
       <key>label2</key>
       <value></value>
     </param>
@@ -3326,20 +3434,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
       <key>label3</key>
@@ -3350,20 +3450,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker3</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
       <key>label4</key>
@@ -3374,20 +3466,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
       <key>label5</key>
@@ -3398,20 +3482,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
       <key>label6</key>
@@ -3422,20 +3498,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
       <key>label7</key>
@@ -3446,20 +3514,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
       <key>label8</key>
@@ -3470,20 +3530,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
       <key>label9</key>
@@ -3494,106 +3546,94 @@
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style9</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker10</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1480, 515)</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tagged_stream_multiply_length</key>
     <param>
-      <key>id</key>
-      <value>blocks_tagged_stream_multiply_length_0</value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>lengthtagname</key>
-      <value>packet_len</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>c</key>
-      <value>sps</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>bw</key>
+      <value>1</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
+      <key>fc</key>
       <value>0</value>
     </param>
     <param>
@@ -3601,135 +3641,84 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(936, 416)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>_coordinate</key>
+      <value>(728, 707)</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0_0</value>
     </param>
     <param>
-      <key>grid</key>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-2</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>address@hidden</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
-    </param>
-    <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>legend</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>label1</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>style1</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
       <key>label2</key>
@@ -3740,20 +3729,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
       <key>label3</key>
@@ -3764,20 +3745,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
       <key>label4</key>
@@ -3788,20 +3761,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
       <key>label5</key>
@@ -3812,20 +3777,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
       <key>label6</key>
@@ -3836,20 +3793,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
       <key>label7</key>
@@ -3860,20 +3809,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
       <key>label8</key>
@@ -3884,20 +3825,12 @@
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
       <key>label9</key>
@@ -3908,1243 +3841,1207 @@
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label</key>
+      <value>Relative Gain</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 627)</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>units</key>
+      <value>dB</value>
     </param>
   </block>
   <block>
-    <key>virtual_source</key>
-    <param>
-      <key>id</key>
-      <value>chan_rx_data</value>
-    </param>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stream_id</key>
-      <value>Chan Data</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 571)</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>affinity</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>digital_pfb_clock_sync_xxx</key>
     <param>
-      <key>id</key>
-      <value>digital_pfb_clock_sync_xxx_0</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccf</value>
+      <key>_coordinate</key>
+      <value>(1480, 355)</value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>loop_bw</key>
-      <value>6.28/100.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>rx_rrc_taps</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>nfilts</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>init_phase</key>
-      <value>nfilts/2</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>1.5</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>osps</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(280, 579)</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label10</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1_0_0_0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ylabel</key>
-      <value>Correlation</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>yunit</key>
-      <value>""</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>size</key>
-      <value>1250</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>srate</key>
+      <key>style2</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-150</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>150</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,0,1,1</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_TAG</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
-      <value>50</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>packet_len</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>legend</key>
-      <value>False</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style1</key>
+      <key>width5</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style2</key>
+      <key>width6</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style3</key>
+      <key>width7</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style4</key>
+      <key>width8</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style5</key>
+      <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value></value>
-    </param>
-    <param>
-      <key>width6</key>
+      <key>nconnections</key>
       <value>1</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>size</key>
+      <value>2500</value>
     </param>
     <param>
-      <key>style6</key>
+      <key>srate</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label9</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>_coordinate</key>
+      <value>(728, 627)</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>address@hidden</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_1_0_0</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha10</key>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 715)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>180</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>digital_constellation_decoder_cb</key>
     <param>
-      <key>id</key>
-      <value>digital_constellation_decoder_cb_0</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>constellation</key>
-      <value>Const_HDR</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(728, 579)</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
     <param>
-      <key>id</key>
-      <value>tab0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_tabs</key>
-      <value>3</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label0</key>
-      <value>Time</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value>Freq.</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label2</key>
-      <value>Const.</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
       <key>label3</key>
-      <value>Tab 3</value>
+      <value></value>
     </param>
     <param>
-      <key>label4</key>
-      <value>Tab 4</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value>Tab 5</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value>Tab 6</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value>Tab 7</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value>Tab 8</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>label9</key>
-      <value>Tab 9</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>label10</key>
-      <value>Tab 10</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label11</key>
-      <value>Tab 11</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label12</key>
-      <value>Tab 12</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label13</key>
-      <value>Tab 13</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label14</key>
-      <value>Tab 14</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>label15</key>
-      <value>Tab 15</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>label16</key>
-      <value>Tab 16</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>label17</key>
-      <value>Tab 17</value>
-    </param>
-    <param>
-      <key>label18</key>
-      <value>Tab 18</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label19</key>
-      <value>Tab 19</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,1,1,1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 1003)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>freq_offset</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Freq. Offset</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
+      <key>marker7</key>
       <value>-1</value>
     </param>
     <param>
-      <key>stop</key>
+      <key>style7</key>
       <value>1</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.001</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,1,1,1</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(600, 875)</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_tab_widget</key>
     <param>
-      <key>id</key>
-      <value>tab1</value>
+      <key>label9</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_tabs</key>
-      <value>3</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label0</key>
-      <value>Time</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label1</key>
-      <value>Freq.</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label2</key>
-      <value>Const.</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value>Tab 3</value>
+      <key>size</key>
+      <value>1250</value>
     </param>
     <param>
-      <key>label4</key>
-      <value>Tab 4</value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value>Tab 5</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value>Tab 6</value>
+      <key>tr_delay</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
-      <value>Tab 7</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>label8</key>
-      <value>Tab 8</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>label9</key>
-      <value>Tab 9</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>label10</key>
-      <value>Tab 10</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>label11</key>
-      <value>Tab 11</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>label12</key>
-      <value>Tab 12</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>label13</key>
-      <value>Tab 13</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>label14</key>
-      <value>Tab 14</value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label15</key>
-      <value>Tab 15</value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>label16</key>
-      <value>Tab 16</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>label17</key>
-      <value>Tab 17</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label18</key>
-      <value>Tab 18</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>label19</key>
-      <value>Tab 19</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,2,1,1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>entags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(624, 1003)</value>
+      <value>(48, 715)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_tag_debug</key>
     <param>
       <key>id</key>
-      <value>blocks_tag_debug_0</value>
+      <value>qtgui_time_sink_x_1_0_0_0</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>legend</key>
       <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>name</key>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>filter</key>
-      <value>""</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_inputs</key>
+      <key>style1</key>
       <value>1</value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>display</key>
-      <value>True</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(520, 667)</value>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>digital_corr_est_cc</key>
     <param>
-      <key>id</key>
-      <value>digital_corr_est_cc_0</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>symbols</key>
-      <value>modulated_sync_word</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>sps</key>
-      <value>sps</value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>mark_delay</key>
-      <value>mark_delay</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0.9</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(48, 619)</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>time_offset</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Time Offset</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1.0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0.99</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1.01</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.00001</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,2,1,1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>comment</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(712, 875)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>marker6</key>
+      <value>-1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>noise</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Noise Amp</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>float</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>5</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.001</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,0,1,1</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(488, 875)</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_random_pdu</key>
     <param>
-      <key>id</key>
-      <value>blocks_random_pdu_0</value>
+      <key>label9</key>
+      <value></value>
     </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+    <param>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>minsize</key>
-      <value>20</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>maxsize</key>
-      <value>20</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>mask</key>
-      <value>0xFF</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>length_modulo</key>
-      <value>2</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>size</key>
+      <value>1250</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>srate</key>
+      <value>1</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>tr_delay</key>
+      <value>50</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(208, 67)</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_TAG</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
-  </block>
-  <block>
-    <key>variable_packet_formatter_default</key>
     <param>
-      <key>id</key>
-      <value>formatter</value>
+      <key>tr_tag</key>
+      <value>packet_len</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>access_code</key>
-      <value>digital.packet_utils.default_access_code</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>ylabel</key>
+      <value>Correlation</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>yunit</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1064, 3)</value>
+      <key>ymax</key>
+      <value>150</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-150</value>
     </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>virtual_source</key>
     <param>
-      <key>id</key>
-      <value>mark_delay</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Mark Delay</value>
+      <key>_coordinate</key>
+      <value>(16, 379)</value>
     </param>
     <param>
-      <key>rangeType</key>
-      <value>int</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>33</value>
+      <key>id</key>
+      <value>rx_mod_header</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>stream_id</key>
+      <value>Mod Header</value>
     </param>
+  </block>
+  <block>
+    <key>virtual_source</key>
     <param>
-      <key>stop</key>
-      <value>200</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter</value>
+      <key>_coordinate</key>
+      <value>(16, 427)</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>id</key>
+      <value>rx_mod_payload</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>2,2,1,1</value>
+      <key>stream_id</key>
+      <value>Mod Payload</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>alias</key>
       <value></value>
@@ -5154,231 +5051,242 @@
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(824, 875)</value>
+      <value>(488, 1003)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_format_async</key>
     <param>
       <key>id</key>
-      <value>digital_packet_format_async_1</value>
+      <value>tab0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label0</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label1</key>
+      <value>Freq.</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 232)</value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
-  </block>
-  <block>
-    <key>digital_burst_shaper_xx</key>
     <param>
-      <key>id</key>
-      <value>digital_burst_shaper_xx_0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>window</key>
-      <value>firdes.window(firdes.WIN_HANN, 20, 0)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>pre_padding</key>
-      <value>20</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>post_padding</key>
-      <value>20</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>insert_phasing</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>length_tag_name</key>
-      <value>packet_len</value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_tab_widget</key>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(448, 379)</value>
+      <value>(624, 1003)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,2,1,1</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_packet_parse_x</key>
     <param>
-      <key>id</key>
-      <value>digital_packet_parse_x_0</value>
+      <key>id</key>
+      <value>tab1</value>
+    </param>
+    <param>
+      <key>label0</key>
+      <value>Time</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value>Freq.</value>
+    </param>
+    <param>
+      <key>label10</key>
+      <value>Tab 10</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label11</key>
+      <value>Tab 11</value>
     </param>
     <param>
-      <key>type</key>
-      <value>b</value>
+      <key>label12</key>
+      <value>Tab 12</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>formatter</value>
+      <key>label13</key>
+      <value>Tab 13</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>0</value>
+      <key>label14</key>
+      <value>Tab 14</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label15</key>
+      <value>Tab 15</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label16</key>
+      <value>Tab 16</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label17</key>
+      <value>Tab 17</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>label18</key>
+      <value>Tab 18</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label19</key>
+      <value>Tab 19</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(952, 571)</value>
+      <key>label2</key>
+      <value>Const.</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_message_debug</key>
     <param>
-      <key>id</key>
-      <value>blocks_message_debug_0_0_0</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label5</key>
+      <value>Tab 5</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label6</key>
+      <value>Tab 6</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>label7</key>
+      <value>Tab 7</value>
     </param>
     <param>
-      <key>comment</key>
-      <value></value>
+      <key>label8</key>
+      <value>Tab 8</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1184, 584)</value>
+      <key>label9</key>
+      <value>Tab 9</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>num_tabs</key>
+      <value>3</value>
     </param>
   </block>
   <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
-    <source_key>payload</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_packet_format_async_1</source_block_id>
-    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
-    <source_key>header</source_key>
-    <sink_key>pdus</sink_key>
+    <source_block_id>blocks_message_strobe_0</source_block_id>
+    <sink_block_id>blocks_random_pdu_0</sink_block_id>
+    <source_key>strobe</source_key>
+    <sink_key>generate</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_header</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>rx_mod_payload</source_block_id>
-    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
+    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>digital_crc32_async_bb_1</source_block_id>
-    <sink_block_id>fec_async_encoder_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>blocks_random_pdu_0</source_block_id>
@@ -5387,62 +5295,62 @@
     <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_message_strobe_0</source_block_id>
-    <sink_block_id>blocks_random_pdu_0</sink_block_id>
-    <source_key>strobe</source_key>
-    <sink_key>generate</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
+    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>fec_async_encoder_0</source_block_id>
-    <sink_block_id>digital_packet_format_async_1</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
+    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
+    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>chan_rx_data</source_block_id>
-    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
+    <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0_0</sink_block_id>
+    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
+    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_pdu_to_tagged_stream_0_0</source_block_id>
-    <sink_block_id>blocks_repack_bits_bb_0</sink_block_id>
+    <source_block_id>chan_rx_data</source_block_id>
+    <sink_block_id>digital_corr_est_cc_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0</source_block_id>
-    <sink_block_id>digital_map_bb_1</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>chan_data</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_map_bb_1_0</source_block_id>
-    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_repack_bits_bb_0_0</source_block_id>
-    <sink_block_id>digital_map_bb_1_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
-    <sink_block_id>mod_payload</sink_block_id>
+    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
+    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -5453,21 +5361,21 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_mux_0</source_block_id>
-    <sink_block_id>digital_burst_shaper_xx_0</sink_block_id>
+    <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id>
+    <sink_block_id>mod_payload</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_burst_shaper_xx_0</source_block_id>
-    <sink_block_id>pfb_arb_resampler_xxx_0</sink_block_id>
+    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
+    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
-    <source_key>0</source_key>
+    <source_block_id>digital_corr_est_cc_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
+    <source_key>1</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
@@ -5477,87 +5385,99 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
+    <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
+    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
+    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0_0_0</sink_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_costas_loop_cc_0_0</source_block_id>
-    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
+    <sink_block_id>qtgui_time_sink_x_1_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
-    <sink_block_id>digital_packet_parse_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_crc32_async_bb_1</source_block_id>
+    <sink_block_id>fec_async_encoder_0</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
   </connection>
   <connection>
-    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
+    <source_block_id>digital_map_bb_1</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_tagged_stream_multiply_length_0</source_block_id>
-    <sink_block_id>channels_channel_model_0</sink_block_id>
+    <source_block_id>digital_map_bb_1_0</source_block_id>
+    <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>chan_data</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0_0</sink_block_id>
+    <source_key>header</source_key>
+    <sink_key>pdus</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <source_block_id>digital_packet_format_async_1</source_block_id>
+    <sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
+    <source_key>payload</source_key>
+    <sink_key>pdus</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>digital_packet_parse_x_0</source_block_id>
+    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
+    <source_key>info</source_key>
+    <sink_key>print</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>blocks_tag_debug_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
+    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
+    <sink_block_id>digital_costas_loop_cc_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
-    <sink_block_id>blocks_tag_debug_0</sink_block_id>
+    <source_block_id>fec_async_encoder_0</source_block_id>
+    <sink_block_id>digital_packet_format_async_1</sink_block_id>
+    <source_key>out</source_key>
+    <sink_key>in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>pfb_arb_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_tagged_stream_multiply_length_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_corr_est_cc_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1_0_0_0</sink_block_id>
-    <source_key>1</source_key>
+    <source_block_id>rx_mod_header</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_packet_parse_x_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0_0_0</sink_block_id>
-    <source_key>info</source_key>
-    <sink_key>print</sink_key>
+    <source_block_id>rx_mod_payload</source_block_id>
+    <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
   </connection>
 </flow_graph>



reply via email to

[Prev in Thread] Current Thread [Next in Thread]