Welcome to GNU Radio!

Introduction

GNU Radio is a free software development toolkit that provides the signal processing runtime and processing blocks to implement software radios using readily-available, low-cost external RF hardware and commodity processors. It is widely used in hobbyist, academic and commercial environments to support wireless communications research as well as to implement real-world radio systems.

GNU Radio applications are primarily written using the Python programming language, while the supplied, performance-critical signal processing path is implemented in C++ using processor floating point extensions where available. Thus, the developer is able to implement real-time, high-throughput radio systems in a simple-to-use, rapid-application-development environment.

While not primarily a simulation tool, GNU Radio does support development of signal processing algorithms using pre-recorded or generated data, avoiding the need for actual RF hardware.

Content Getting Started - If you are new to GNU Radio, read this first. Download - Jump straight to the source. Build Guide - How to build GNU Radio once you have the source Contribute to GNU Radio Frequently Asked Questions Communicate: Mailing lists Documentation: Doxygen Generated API How to Write a GNU Radio Signal Processing Block Universal Software Radio Peripheral - USRP FAQ How to Write GNU Radio Python Applications Suggested Reading Wiki Index GNU Radio code on other servers Real world users Academic papers involving GNU Radio Commercial support and training Presentations

News March 24, 2008 - GNU Radio 3.1.2 Release: This is an important bug fix and feature release. Please refer to release log for details. To install this version, please refer to the Build Guide. November 5, 2007 - GNU Radio 3.1.1 Release: This is an important bug fix release. October 22, 2007 - GNU Radio 3.1.0 Release: This is a new stable branch release based on the existing development trunk with the incomplete or unstable parts removed.