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Re: [Discuss-gnuradio] usrp2 tune two different frequencies

From: ematlis
Subject: Re: [Discuss-gnuradio] usrp2 tune two different frequencies
Date: Mon, 20 Apr 2009 10:45:48 -0400 (EDT)
User-agent: Alpine 2.00 (LFD 1167 2008-08-23)

On Mon, 20 Apr 2009, Johnathan Corgan wrote:

On Mon, Apr 20, 2009 at 7:33 AM,  <address@hidden> wrote:

is it possible to tune the USRP2 to two different frequencies?  I can do
this with the USRP1 and a LFRX daughterboard using usrp.tune twice:

The USRP has one receive daughterboard and one baseband DDC, so no,
you can only tune to one center frequency.

However, if your signals of interest are close enough, you can set the
center frequency to the mid-point between them, set the decimation
rate to that which would give you a frequency band that contains both
signals, then separate them on the host inside your GNU Radio
flowgraph using two DDC blocks.


I see, thanks for the help.


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