SDR (Software Defined Radio): Newshttps://osmocom.org/https://osmocom.org/favicon.ico?16647414092012-08-17T19:29:00ZOpen Source Mobile Communications
Redmine GNSS-SDR officially supports rtl-sdr https://osmocom.org/news/442012-08-17T19:29:00Zlaforge
<p>The team of developers of the open source project GNSS-SDR proudly announces that the latest version of our GNSS receiver supports the realtime operation using RTL-SDR compatible dongles.</p>
<p>They achieved GPS position fix with what is probability the cheapest GPS receiver ever made. If you have a RTL2832U based compatible DVB-T receiver you can have also a GPS just adding an active GPS antenna and our free GNSS software.</p>
<p>All the details can be found in this article</p>
<p><a class="external" href="http://www.gnss-sdr.org/documentation/gnss-sdr-operation-realtek-rtl2832u-usb-dongle-dvb-t-receiver">http://www.gnss-sdr.org/documentation/gnss-sdr-operation-realtek-rtl2832u-usb-dongle-dvb-t-receiver</a></p>
<p>Visit ​http://www.gnss-sdr.org for more information about the GNSS-SDR project.</p> Introducing RTL-SDR https://osmocom.org/news/422012-03-18T19:29:00Zlaforge
<p>While the <a class="wiki-page" href="https://osmocom.org/projects/osmosdr/wiki">OsmoSDR</a> is still not available, some Osmocom team members (notably Steve Markgraf) have been hacking away on an alternative least-cost solution: <a class="wiki-page" href="https://osmocom.org/projects/sdr/wiki/Rtl-sdr">rtl-sdr</a>.</p>
<p>So what is rtl-sdr? It is a creative form of using consumer-grade DVB-T USB receivers, turning them into fully-fledged software defined radios.</p>
<p>Those DVB-T receivers supported by <a class="wiki-page" href="https://osmocom.org/projects/sdr/wiki/Rtl-sdr">rtl-sdr</a> are based on the Realtek RTL2832U chipset plus a tuner IC like the Elonics E4000.</p>
<p>The RTL2832U has some undocumented commands/registers, by which it can be placed into a mode where it simply forwards the unprocessed raw baseband samples (up to 2.8 MS/s 8-bit I+Q) via high-speed USB into the PC, where they are routed into gnuradio.</p>
<p>At a street price of about USD 20 to USD 25, they are undoubtedly the most capable low-cost SDR hardware that can be bought. So now there is really no more excuse for anyone to not learn gnuradio. You don't have to buy a USRP, not even a FCDP or an OsmoSDR: A USD 20 device is all that's needed for receiving signals like GSM, GMR, DECT, TETRA, APCO25 and many others.</p>