Re: [Discuss-gnuradio] RTL2832 ($20 USB SDR) support now in gr-baz

[Rafael Diniz]

Indeed, F****ng awesome!
Do you plan to submit upstream your gr-baz?

People, in dealextreme store the dongle is sold out.
I do not want to start an off-topic trend, but could you please mail me in
private where are you buying such dongle?

Best regards,
Rafael Diniz

> Awesome! I'm still waiting on my RTL-based card to arrive via snail-mail
> from an unknown factory on the other side of the world. Will test when it
> arrives!
>
> From: address@hidden
> [mailto:address@hidden On
> Behalf Of Balint Seeber
> Sent: Thursday, March 29, 2012 11:22 AM
> To: address@hidden
> Subject: [Discuss-gnuradio] RTL2832 ($20 USB SDR) support now in gr-baz
>
> Hi folks,
>
> I've just added RTL2832 support to gr-baz with support for both tuners
> (Elonics E4000 and Fitipower FC0013).
>
> If you're not aware, this is sold as a DVB-T USB receiver for ~$20, which
> is a pretty decent price for a device that can do general purpose SDR at
> 3.2 MHz and 8-bits! The journey starts with Antti
> Palosaari<http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/44461/focus=44461>
> who discovered it can be put in a mode where it streams baseband data
> directly over USB (for analog FM demodulation in software). This resulted
> in Steve Markgraf's rtl-sdr<http://sdr.osmocom.org/trac/wiki/rtl-sdr>
> user-space capture utility over at Osmocom (see the Osmocom page to find
> compatible devices).
>
> I've taken that source and created a fully-featured GNU Radio Source block
> 'baz.rtl_source_c'<http://wiki.spench.net/wiki/Gr-baz#rtl_source_c> (with
> GRC block) that outputs complex values, and allows adjustment of
> frequency, sample rate and LNA gain. There is also an optional automatic
> tuner mode control for the E4000. If you also like using
> Winrad/HDSDR/WRplus, my ExtIO
> plugin<http://wiki.spench.net/wiki/USRP_Interfaces> now has support for
> the device too. The Source block performs internal multi-threaded
> buffering for smoother performance (this might be over-engineered, but it
> seemed to help with the ExtIO plugin).
>
> You can get the source code from my
> SVN<http://svn.spench.net/main/gr-baz/> or
> github<https://github.com/balint256/gr-baz> (though please visit the info
> page<http://wiki.spench.net/wiki/Gr-baz#rtl_source_c> first for more
> info/pre-reqs - e.g. libusb-1.0, etc). It's experimental, and not the
> prettiest because I actually ported it back from the ExtIO plugin, but it
> works for me and if you want to help test/clean it up then that would be
> very much appreciated!
>
> To see it in action, have a peek here: http://youtu.be/FUQd9HOVTk8
>
> Balint @spenchdotnet<http://twitter.com/spenchdotnet>
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