From: Steve Markgraf <steve@steve-m.de>
To: linux-media@vger.kernel.org
Subject: Re: SDR FM demodulation
Date: Mon, 12 Mar 2012 02:09:36 +0100 [thread overview]
Message-ID: <jjjicf$n6s$1@dough.gmane.org> (raw)
In-Reply-To: <4F36632A.3010700@iki.fi>
Hi,
On 11.02.2012 13:46, Antti Palosaari wrote:
> Now someone should make Linux driver that can tune that device to
> different frequencies and look what it really can do.
I sniffed the Windows driver and wrote a small libusb-based program
[1], which can tune to a given frequency and record the I/Q-samples to
a file.
So far FM radio reception with GNU Radio, as well as GMR-1 satellite
(Thuraya) reception [2] at 1,525GHz with 1,8MHz bandwidth have been
tested. Despite the 8 bit ADC, the stick seems to perform quite well.
The program so far supports the "ezcap USB 2.0 DVB-T/DAB/FM stick" with
the Elonics E4000 tuner, and the "Terratec NOXON DAB/DAB+ USB-Stick"
with the Fitipower FC0013 tuner.
The code is still somewhat hackish and experimental, since not all of
the demodulator registers are known, and especially the tuner setup has
room for improvement.
Regards,
Steve
[1] http://cgit.osmocom.org/cgit/rtl-sdr/
[2] http://gmr.osmocom.org/
prev parent reply other threads:[~2012-03-12 1:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-09 15:01 SDR FM demodulation Antti Palosaari
2012-02-09 15:11 ` 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 [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='jjjicf$n6s$1@dough.gmane.org' \
--to=steve@steve-m.de \
--cc=linux-media@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox