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[Discuss-gnuradio] usrp_nbfm_rcv.py
From: |
Marcus Leech |
Subject: |
[Discuss-gnuradio] usrp_nbfm_rcv.py |
Date: |
Sat, 31 Dec 2005 22:26:19 -0500 |
User-agent: |
Mozilla Thunderbird 1.0 (X11/20041206) |
I gather that usrp_nbfm_rcv.py is using an older "view" of the
nbfmrx.py module from gnuradio-core, since the squelch code
inside usrp_nbfm_rcv.py provokes errors complaining about
undefined attributes.
Is there an update on the way for usrp_nbfm_rcv.py that uses the
newer squelch model?
I want to use usrp_nbfm_rcv.py to possibly help in tracking down
some interference I'm seeing at 1422.075Mhz. I ruled out
internally-generated spurs, since the signal is directional.
It might help me if I can try demodulating it. There are two
components--a narrow component, and a wideband component.
The wideband component is about 100Khz wide, while the narrow
component, about 100Khz up from the main component, is fairly
narrow--about 3-4Khz or so.
I'm just using a circular feedhorn, and a 15dBG/0.7dBNF LNA, and
the feedhorn is inside the house. So, the source can't be that far
away from me.
There's a capture of the signal (using usrp_fft.py) at:
http://www.propulsionpolymers.com/radioastronomy/1422.075.gif
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