"Philip Heron" <[EMAIL PROTECTED]> wrote:
Martin Braun wrote:
RXing with the USRP simply doesn't work, though, neither with
usrp_rx_nogui.py nor with anything I could come up with. I get lots more
noise than expected and usually I get a very loud buzz or whistle which
is a lot louder than the TXed signal. Has anyone else had this problem?
Hi Martin,
Just a quick "me too!". I don't have a USRP yet but I did try using GNU
Radio to receive AM radio signals with a BT878 chip. With a slightly
modified am_rcv.py I could hear the station, but it was very weak and
drowned out by lots of noise. The capture was fine as I was able to get
good audio (as good as AM can be anyway) with the Dream DRM receiver in
analogue mode, using GNU Radio to shift the target carrier down to 12kHz.
-Phil
I don't think it is the USRP and I don't think it is anything inherent in
GNU Radio. I have been using the USRP (with LFRX) and GNU Radio for
HF/MF/LF reception for a while now with great success. My recollection is
that am_rcv.py had some problems (e.g., specifying the if_rate in the design
of the audio filter); I have not looked at usrp_rx_nogui.py.
Unless your hardware is broken, I'll bet you can find a remedy in the
software.
-- Don W.
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