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From: Antti Palosaari <crope@iki.fi>
To: linux-media <linux-media@vger.kernel.org>
Subject: SDR FM demodulation
Date: Thu, 09 Feb 2012 17:01:12 +0200	[thread overview]
Message-ID: <4F33DFB8.4080702@iki.fi> (raw)

I have taken radio sniffs from FM capable Realtek DVB-T device. Looks 
like demodulator ADC samples IF frequency and pass all the sampled data 
to the application. Application is then responsible for decoding that. 
Device supports DVB-T, FM and DAB. I can guess  both FM and DAB are 
demodulated by software.

Here is 17 second, 83 MB, FM radio sniff:
http://palosaari.fi/linux/v4l-dvb/rtl2832u_fm/
Decode it and listen some Finnish speak ;)

Could someone help to decode it? I tried GNU Radio, but I failed likely 
because I didn't have enough knowledge... GNU Radio and Octave or Matlab 
are way to go.

I smell very cheap poor man's software radio here :)

regards
Antti
-- 
http://palosaari.fi/

             reply	other threads:[~2012-02-09 15:01 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-09 15:01 Antti Palosaari [this message]
2012-02-09 15:11 ` SDR FM demodulation Patrick Boettcher
2012-02-09 15:21   ` Antti Palosaari
2012-02-09 21:47     ` Andy Walls
2012-02-11  2:08     ` Andy Walls
2012-02-11  2:29       ` David Hagood
2012-02-11 16:03         ` Andy Walls
2012-02-11  7:00 ` Alistair Buxton
2012-02-11 11:33   ` Daniel Glöckner
2012-02-11 12:46   ` Antti Palosaari
2012-02-11 15:15     ` Daniel Glöckner
2012-02-11 15:33       ` Antti Palosaari
2012-02-11 15:55         ` Daniel Glöckner
2012-03-12  1:09     ` Steve Markgraf

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