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Re: [Discuss-gnuradio] USRP with Basic_RX

From: Josh Blum
Subject: Re: [Discuss-gnuradio] USRP with Basic_RX
Date: Tue, 01 Jun 2010 11:47:29 -0700
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go with the dual usrp source in grc, setup the antennas and sides correctly and it should work :-)


On 06/01/2010 11:12 AM, Marcus D. Leech wrote:
On 06/01/2010 11:38 AM, Josh Blum wrote:
You are seeing the lower bound clipping in the nlog10 block. Try
looking at it with the scope sink, you should see some bits twiddle in
the wind. -Josh
II puut 40dB of 50MHz-low-pass-filtered gain in front of the Basic_RX,
and now it's "rational".  :-)

But I *do* have another question.  Is it possible to treat the two
inputs to the Basic_RX as
   two largely-independant "real-sampled" streams?  If I wanted to use
one of the inputs as
   a real-sampled signal of the "outside world", and the other input as a
real-sampled reference
   stream, is that possible?  The two streams would be at the same center
frequency.  Will
   the DDC and half-band filtering interfere with the "independence" of
the two streams?

Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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