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Re: [Discuss-gnuradio] Basic analog USRP2 transmitter

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] Basic analog USRP2 transmitter
Date: Sun, 07 Nov 2010 16:44:12 -0500
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20100907 Fedora/3.0.7-1.fc12 Thunderbird/3.0.7

On 11/07/2010 02:00 PM, alexander levedahl wrote:
> I have tried transmitting an analog signal from one USRP2 to another,
> but when I run usrp2_fft.py on the rx computer, there is no receive
> signal.  The analog signal is supposed to be two tones at 350 and 440
> HZ transmitted at 2.6GHz.  Can anyone help me figure out what I am
> doing wrong?
> I have tried using GRC, but at the most up to date version does not
> work with Fedora, which is the OS that I have to use, this is for a
> research project with a professor at my university, and the mandate is
> to use Fedora, this does not look like it will change in the near
> future.  
> Alex
You haven't mentioned which daugtercard(s) you're using on the TX and RX

Also, your tones are going to be offset from the center frequency by
less than 1KHz, so they'll
  be hard to see in the DC-offset removal process.

Try tuning your receiver up or down a couple of KHz and see if your
tones show up in
  the FFT.

Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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