It’s a local radio station - picture of signal imgur.com/kcQLr9d On May 5, 2014, at 5:39 PM, Marcus D. Leech <[email protected]> wrote:
>> It just looks like noise. >> > Well, "noise" isn't the same as "no signal at all". > > Do you *expect* there to a signal at 107.7MHz? Do you have an antenna > plugged in to the correct port on the device? > > >> On May 5, 2014, at 4:59 PM, Marcus D. Leech<[email protected]> 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 >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > -- > Marcus Leech > Principal Investigator > Shirleys Bay Radio Astronomy Consortium > http://www.sbrac.org
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