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GNSS-SDR officially supports rtl-sdr (1 comment)

Added by laforge over 4 years ago

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.

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.

All the details can be found in this article

http://www.gnss-sdr.org/documentation/gnss-sdr-operation-realtek-rtl2832u-usb-dongle-dvb-t-receiver

Visit ​http://www.gnss-sdr.org for more information about the GNSS-SDR project.

Introducing RTL-SDR

Added by laforge almost 5 years ago

While the OsmoSDR is still not available, some Osmocom team members (notably Steve Markgraf) have been hacking away on an alternative least-cost solution: rtl-sdr.

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.

Those DVB-T receivers supported by rtl-sdr are based on the Realtek RTL2832U chipset plus a tuner IC like the Elonics E4000.

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.

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.

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