rtl_fm scanning

Alan Corey alancorey at yahoo.com
Wed May 1 02:34:34 UTC 2013


Under OpenBSD only sync mode works, and that's only with Stuart Henderson's patches from http://www.openbsd.org/cgi-bin/cvsweb/ports/comms/rtl-sdr/patches/.  I'm scanning a bunch of 120 MHz AM aircraft freqs right now and I don't hear the noise, but scanning FM I do.  rtl_adsb, rtl_tcp, etc. aren't fixed yet.

I'm running libusb 1.0.9p3 from the OpenBSD ports collection under 5.2.  I have a 5.0 machine with 1.0.9 built from a tarball that works a few minutes and gives a "library -99" error.

  Alan

-----

Radio Astronomy - the ultimate DX

--- On Tue, 4/30/13, Ben Moore <benjamin.n.moore at gmail.com> wrote:

From: Ben Moore <benjamin.n.moore at gmail.com>
Subject: Re: rtl_fm scanning
To: osmocom-sdr at lists.osmocom.org
Date: Tuesday, April 30, 2013, 3:16 PM

I haven't had a chance to check on the Raspberry Pi to see if this issue is fixed by forcing synchronous mode, but I suspect it is.
http://lists.gnumonks.org/pipermail/osmocom-sdr/2013-April/000588.html
- Ben

On Apr 30, 2013, at 11:07 AM, Alan Corey wrote:
Mine doesn't hang, it just makes a noise.  If I change just the demodulator to AM instead of FM, it doesn't do it. If I set the squelch level up around 1000 it takes out the signals, but not the noise.

OpenBSD 5.2, ftl_fm from git about 4/23/2013

  Alan

-----

Radio Astronomy - the ultimate DX

--- On Tue, 4/30/13, Chourico <lists at the-reapers.com> wrote:

From: Chourico <lists at the-reapers.com>
Subject: Re: rtl_fm scanning
To: osmocom-sdr at lists.osmocom.org
Date: Tuesday, April 30, 2013, 7:53 AM

Colin Stagner <cbs228 <at> gmail.com> writes:

> 
> I am also having the rtl_fm scanning bug which was first reported in
> http://lists.gnumonks.org/pipermail/osmocom-sdr/2013-February/000485.html
> 

> 
> Can anyone else reproduce this bug?
> 
> 

I am having the same problem.

EzTV666, Ubuntu 12.04, kernel 3.2.0-23,
latest rtl_sdr from git, 2013-04-30

rtl_fm
 works fine when only one frequency is specified, hangs after first
frequency is skipped.





-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20130430/c29235be/attachment.html>


More information about the osmocom-sdr mailing list