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start [2013/07/11 07:29]
roklobsta [History and Discovery of RTLSDR]
start [2016/04/10 00:00] (current)
roklobsta [History and Discovery of RTLSDR]
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 ==== History and Discovery of RTLSDR ==== ==== History and Discovery of RTLSDR ====
-It bugs me a little ​that Antti Palosari ​is [[http://​spectrum.ieee.org/​geek-life/​hands-on/​a-40-softwaredefined-radio|getting credit]] for the discovery of RTL tuners being used for SDR.  It's not true.  The RTL2382U parts were always intended for SDR as the dongles come with SDR software in Windows for DAB+ and FM reception.  ​The credit for uncovering of what the Windows software does lies with a fellow named [[http://​nuvie.sourceforge.net/​|Eric Fry]] originally sniffing the USB packets back in March of 2010 in hope of getting ​a DAB or FM receiver working in Linux (he had originally been providing unofficial support for Linux and this [[http://​digitalnow.com.au/​product_pages/​Quad.html|Quad ​RTL]] DVB tuner). ​ I made some [[http://​comments.gmane.org/​gmane.linux.drivers.video-input-infrastructure/​30346|noises]] about this [[http://​comments.gmane.org/​gmane.linux.drivers.video-input-infrastructure/​40927| ​on and off]] on the linuxtv ​mailing lists and discussed SDR potential on the associated IRC channel.  ​Eventually ​the Realtek RTL2382U Linux driver and and some independent work by [[http://​sdr.osmocom.org/​trac/​wiki/​rtl-sdr|Osmocom]] (who were making their own E4000 based SDR) collided and in 2012 RTLSDR ​exploded onto the scene.  ​+It turns out that Antti Palosaari ​is perhaps not entirely responsible alone in [[http://​spectrum.ieee.org/​geek-life/​hands-on/​a-40-softwaredefined-radio|getting credit]] for the discovery of Realtek 2832U tuners being used for SDR.  The RTL2382U parts were always ​**intended** by design ​for SDR as the dongles come with closed ​SDR software in Windows for DAB+ and FM reception ​on the mini CD.  ​I think the credit for uncovering of what the Windows software does lies with a fellow named [[http://​nuvie.sourceforge.net/​|Eric Fry]] originally sniffing the USB packets ​from the Windows application in FM and DAB mode way back in **March of 2010**.  He had hoped to get a DABor FM receiver working in Linux (he had originally been providing unofficial support for Linux and this [[http://​digitalnow.com.au/​product_pages/​Quad.html|Quad ​Realtek]] DVB tuner).  ​Eric and I discussed this privately at length and I made some [[http://​comments.gmane.org/​gmane.linux.drivers.video-input-infrastructure/​30346|reflections]] about [[http://​comments.gmane.org/​gmane.linux.drivers.video-input-infrastructure/​40927| ​this]] SDR feature in 2011 on the linux-tv ​mailing lists and discussed SDR potential on the associated ​#​linux-tv ​IRC channel.  ​Realtek had sent me some alpha FM SDR software for Linux with a promise of DAB+ to come.  Antti'​s infamous [[http://​comments.gmane.org/​gmane.linux.drivers.video-input-infrastructure/​44461|email]] followed in early 2012.  Very quickly ​the Realtek RTL2382U Linux driver and and some independent work by [[http://​sdr.osmocom.org/​trac/​wiki/​rtl-sdr|Osmocom]] (who were making their own E4000 based SDR) collided and in RTL-SDR as we know it exploded onto the scene.  ​
  
-So, the original '​discovery'​ lies with Eric.  Much of the work getting the RTL2382U tamed in between then and now lies somewhat ​with Antti and mainly ​Osmocom.+So, the original '​discovery'​ lies with Eric.  Much of the work getting the RTL2382U ​and it's associated tuners ​tamed in between then and now lies with Antti and Osmocom. 
 + 
 +Here are some USB data dumps Eric took of his RTL dongle tuned to the FM band in April 2010. 
 + 
 +{{:​test2.png?​200}} {{:​test3.png?​200}} {{:​test4.png?​200}}
  
-Alas to date, there is no native DAB+ SDR for Linux. 
start.1373520584.txt.gz · Last modified: 2013/07/11 07:29 by roklobsta