[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] Bluetooth using RFX-2400
From: |
Dan Halperin |
Subject: |
Re: [Discuss-gnuradio] Bluetooth using RFX-2400 |
Date: |
Wed, 16 May 2007 12:23:02 -0700 |
User-agent: |
Thunderbird 1.5.0.10 (X11/20070403) |
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Johnathan Corgan wrote:
> Dominic Spill wrote:
>
>> I think I may've mis-phrased the question, if I have a single daughterboard
>> and I tune to 2.44GHz, what are the highest and lowest frequencies that I
>> should be able to see when I run something like the usrp_fft waterfall
>> program?
>
> With a decimation of 8, you will see 64 Msps/decimation = 8 Msps complex
> over USB = 8 MHz passband = 2436 MHz - 2444 MHz.
>
Has anyone actually implemented using smaller I/Q coefficients and doing
e.g. 16 MHz with 8-bit coeffs or 32 MHz with 4 bits? I'm curious as to
how performance degrades with lower resolution.
32 MHz should be the maximum passband since the A/Ds are at 64 MHz, yes?
- -Dan
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFGS1oWy9GYuuMoUJ4RAiTBAJ9UgxUD5MLm8Nq/jzgM0v0j5eKTBwCghCWS
ZTr6i2mpwWU6CGn5rHiRmYE=
=43ir
-----END PGP SIGNATURE-----