FM RDS/TMC Transceiver

A simple DSP library and command-line tool for Software Defined Radio.

GNU Radio DAB (digital audio broadcasting) module

Vaisala Radiosonde Telemetry Receiver

Digital Speech Decoder

[not maintained] Pipeable AM, FM demodulator

Open source 3GPP LTE library

LTE SDR cell scanner optimized to work with very low performance RF front ends (8bit A/D, 20dB noise figure)

P25 Phase 1 and ProVoice vocoder

Open Digital Voice software for Amateur Radio based on Jonathan Naylor's (G4KLX) "ircDDBGateway" and "PCRepeaterController" for D-Star

api for gnuradio fec implementations

Communications blocks and support libraries

Radioastronomy observing software to record spectral data.

Cross-Platform Software-Defined Radio Application

GSM+GPRS Radio Access Network Node

Open Digital Voice software for Amateur Radio based on Jonathan Naylor's (G4KLX) "ircDDBGateway" and "PCRepeaterController" for D-Star

started from VK5ABN http://www.ping.net.au/20140126_cuSDR64src.tar.gz

GNU Radio

A C++ library and python bindings for physical layer wireless research

Digital Speech Decoder

An IEEE 802.11 a/g/p Transceiver for GNU Radio

Teensy Audio Library

Records calls from a Trunked Radio System (P25 & SmartNet)

Simple C++ plotting

ArduPlane, ArduCopter, ArduRover source

An Open Source Software Package that enables owners of DVB-T dongles with an embedded Realtek RTL2832U chipset to build models in Simulink that interface with the device in realtime

The goal of the GPSTk project is to provide an open source library and suite of applications to the satellite navigation community--to free researchers to focus on research, not lower level coding.

GNU Radio block for Digital Speech Decoder

Software decoder for FM broadcast radio with RTL-SDR (Mac OSX)