I changed antenna’s and I see a signal now in uhd_fft. I just noticed that when in GRC and I run the flow graph, i don’t see the RX light come on the board like when running uhd_fft.
I have put the grc file up here http://test.utr-software.com/sdr/test.grc Thanks, Greg On May 5, 2014, at 5:03 PM, Greg Hulands <ghula...@me.com> wrote: > It just looks like noise. > > On May 5, 2014, at 4:59 PM, Marcus D. Leech <mle...@ripnet.com> wrote: > >> On 05/05/2014 07:52 PM, Greg Hulands wrote: >>> Hi, >>> I built all the code today using the build-gnuradio script and when I >>> create a simple GRC flow graph going from the USRP source to the waterfall >>> plot, I get no data coming in. I then built gqrx and ran it and it too >>> doesn’t get any data in from the device to display on its waterfall. I ran >>> the rx_samples_to_file example and captured some data, but when looking at >>> it in a hex editor, it doesn’t look like it captured anything in particular >>> (http://test.utr-software.com/sdr/rxdump.dat). I ran it with >>> ./rx_samples_to_file —freq=107700000 —rate=1000000 —file=~/rxdump.dat. >>> >>> I am new to gnu radio and sdr so I’m not yet sure how to dig in to debug >>> these issues. >>> >>> Anything help is greatly appreciated. >>> >>> Thanks, >>> Greg >> >> How about something really, really simple: >> >> uhd_fft -a type=b200 -f 107.7e6 -s 1.0e6 -g 40 --fft-rate 8 --averaging >> >> >> -- >> Marcus Leech >> Principal Investigator >> Shirleys Bay Radio Astronomy Consortium >> http://www.sbrac.org >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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