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redhawk
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Joined: Sun Mar 04, 2012 2:13 pm
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R820T DAB/FM/TV dongle??

Thu Dec 13, 2012 1:15 pm

I've been looking primarily for a DAB radio adapter something to stream mp2 audio via the PI - http://www.ebay.co.uk/itm/R820T-ISDB-T- ... 0868189288

Does anyone know if such a device is supported on the PI and whether the DAB or FM radio is fully functional from within Linux??

Richard S.

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michele.x
Posts: 72
Joined: Sat Sep 22, 2012 8:15 pm

Re: R820T DAB/FM/TV dongle??

Thu Dec 13, 2012 2:05 pm

redhawk wrote:I've been looking primarily for a DAB radio adapter something to stream mp2 audio via the PI - http://www.ebay.co.uk/itm/R820T-ISDB-T- ... 0868189288

Does anyone know if such a device is supported on the PI and whether the DAB or FM radio is fully functional from within Linux??

Richard S.
The RTL2832U chipset is supported in Linux 3.6.8 for DVB-T. I've teste on a Desktop PC and not on the Pi.

I've used one of these dongles as a SDR system with the suite gnuradio and gnuradio-companion, always on the desktop PC. I've tried to use gnuradio to decode DAB signals without sucess.

The dongle decodes dab radio with its windows 7 program.

azbest_hu
Posts: 8
Joined: Thu Sep 20, 2012 9:18 am

Re: R820T DAB/FM/TV dongle??

Sat Dec 29, 2012 8:32 pm

For a working dongle is not enought the rtl2832u chip support, but also required for the other (rf tuner) chip inside.

I used rtl2832u+e4000 tuner with this driver:
https://github.com/ambrosa/DVB-Realtek- ... rnel-3.0.0

The new r820t - as i know - currently is not supported under linux. There is no driver for r820t radio chip in the current media tree:
http://git.linuxtv.org/media_tree.git/t ... dia/tuners

update:
i found a post with new driver sources, that contains r820t driver, too:
https://groups.google.com/forum/#!msg/u ... pqSRnYud4J

ekkithump
Posts: 1
Joined: Tue Jul 16, 2013 10:36 pm

Re: R820T DAB/FM/TV dongle??

Tue Jul 16, 2013 10:49 pm

Hi,
From linux 3.10, kernels now include the r820t driver. You need a really recent one for it to work though. Not tested it on a Pi, but just trying it on a laptop. Ubuntu "mainline" kernel 3.10.1-031001-generic, for instance, has a Hz vs kHz error in the tuner code, but the latest linuxtv bundle fixed it for me.
I've had DVB-T working. just investigating DAB signals.

For just FM / ADS-B (planeplotter) stuff, you don't need kernel drivers (they need removing!).
I'd personally recommend "dump1090" if you want to do Mode-S / ADS-B stuff - it just seems to work.

David

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