gr-osmosdr patches not yet merged upstream. Please only report problems related to the patches
C++ CMake Python C
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Dimitri Stolnikov
Latest commit c653754 Jun 11, 2017
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apps apps: implement --peak-hold option for fft Feb 28, 2016
cmake Add support for FreeSRP Apr 18, 2017
docs introduce osmosdr namespace, remove _c suffix May 30, 2013
grc rtl,rtl_tcp: add bias=0|1 parameter to switch off|on bias voltage on Jun 11, 2017
include/osmosdr introduce time & clock synchronisation APIs Nov 25, 2014
python python: Remove an old workaround for a swig bug Aug 25, 2014
AUTHORS Add support for FreeSRP Apr 18, 2017
CMakeLists.txt Add support for FreeSRP Apr 18, 2017
COPYING update license file to GPL v3 as in source Apr 21, 2012 updated May 13, 2015
README Add support for FreeSRP Apr 18, 2017 cmake: update url to documentation page Jun 8, 2013


While primarily being developed for the OsmoSDR hardware, this block
as well supports:

 * FUNcube Dongle through libgnuradio-fcd
 * FUNcube Dongle Pro+ through gr-fcdproplus
 * sysmocom OsmoSDR Devices through libosmosdr
 * RTL2832U based DVB-T dongles through librtlsdr
 * RTL-TCP spectrum server (see librtlsdr project)
 * MSi2500 based DVB-T dongles through libmirisdr
 * SDRplay RSP through SDRplay API library
 * gnuradio .cfile input through libgnuradio-blocks
 * RFSPACE SDR-IQ, SDR-IP, NetSDR (incl. X2 option)
 * AirSpy Wideband Receiver through libairspy
 * CCCamp 2015 rad1o Badge through libhackrf
 * Great Scott Gadgets HackRF through libhackrf
 * Nuand LLC bladeRF through libbladeRF library
 * Ettus USRP Devices through Ettus UHD library
 * Fairwaves UmTRX through Fairwaves' fork of UHD
 * Red Pitaya SDR transceiver (
 * FreeSRP through libfreesrp

By using the OsmoSDR block you can take advantage of a common software api in
your application(s) independent of the underlying radio hardware.

For installation and usage guidelines please read the documentation available

For the impatient :) a short excerpt:

The Gnu Radio block requires a recent gnuradio (>= v3.7) to be installed.

Before building the block you have to make sure that all the dependencies
(see list of supported devices above) you are intend to work with are
properly installed. The build system of gr-osmosdr will recognize them and
enable specific source/sink components thereafter.

Please note: prior pulling a new version from git and compiling it,
please do a "make uninstall" first to properly remove the previous version.

Building with cmake:

git clone git://
cd gr-osmosdr/
mkdir build
cd build/
cmake ../
sudo make install
sudo ldconfig

NOTE: The osmocom blocks will appear under 'Sources' and 'Sinks' categories
in GRC menu.