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From: | Sharif Shaher |
Subject: | Re: [Discuss-gnuradio] FLEX900 RX2 Port |
Date: | Thu, 18 Feb 2010 14:53:54 -0500 |
User-agent: | Thunderbird 2.0.0.23 (Windows/20090812) |
Hi Matt,Thanks for the advice, but might you know how I can configure usrp2_fft.py to
use port RX2, as i had mentioned, augmenting usrp2_fft.py in the fashion I described does not work. For that matter, might you know in general how to direct reception to RX2 instead of TX/RX which I believe is the default. Thanks, Sharif Matt Ettus wrote:
On 02/18/2010 11:38 AM, Sharif Shaher wrote:Hello, I am trying to run a loopback test where I am using the USRP2 and the FLEX900 daughter board. I have connected the TX/RX port directly to the RX2 port. I am runningusrp2_siggen.py as is (presumably transmitting out the TX/RX port) and thenalso running usrp2_fft.py. I tried to modify usrp2_fft.py so that I could switch the receive port to RX2 as follows "self.subdev.select_rx_antenna('RX2')" - actuallypretty much just uncommented out the code that was already there. Howeverthis does not seem to work. I wonder is there anyway that I can preform the test I want to. Is there anyway to get the USRP2 to transmit out TX/RX and at the same time receive from port RX2...any help would be greatly appreciated.Yes, you can do full duplex, but you should not connect the ports directly or you will blow out the receiver. There will be enough leakage that you can just put attenuators.Matt
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