NOTE: OsmoSDR has been phased out, the hardware is no longer available and the project is unmaintained

Welcome to OsmoSDR

OsmoSDR is a 100% Free Software based small form-factor inexpensive
SDR (Software Defined Radio) project.

If you are familiar with existing SDR receivers, then OsmoSDR can be thought
of something in between a FunCube Dongle (only 96kHz bandwidth) and a USRP (much more expensive).
For a very cheap SDR (with limited dynamic range), you can use the DVB-T USB stick using the RTL2832U chip, as documented in rtl-sdr.

It consists of a USB-attached Hardware, associated Firmware
as well as GrOsmoSDR gnuradio integration on the PC.

The first generation hardware (1.2 MS/s) was available to interested developers from but is now sold out

Hardware schematics and firmware source code are kept in a git repository on
  • clone the repository like this: git clone git://


This is a (slightly better) picture of the current developer preview:

OsmoSDR developer preview

Mailing List

We discuss both OsmoSDR as well as rtl-sdr on the following mailing list: .
You can subscribe and/or unsubscribe via the following link:

Please make sure you read the MailingListRules before you start posting.


osmosdr.jpg - PCB photograph of OsmoSDR (173 KB) laforge, 01/01/2012 01:16 PM

osmosdr-beta.jpg - OsmoSDR developer preview (145 KB) Hoernchen, 05/27/2012 05:22 PM