I changed to RX2 and still not activating the receiver on the
board.
Try changing the "Wire Format" to complex-int16
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
The default antenna port if you don't specify one is
always TX/RX -- because you might be wanting to do
half-duplex. You can explicitly specify
the RX2 antenna port in the GRC source block, or just
remember that "unspecified" means, typically, TX/RX.
On May 5, 2014, at 5:03 PM, Greg
Hulands<address@hidden>
wrote:
It just looks like noise.
On May 5, 2014, at 4:59 PM, Marcus D. Leech<address@hidden>
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
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--
Marcus Leech
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Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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