GNU Radio is a free software development toolkit that provides signal processing blocks to implement software radios. It can be used with readily-available low-cost external RF hardware to create software-defined radios, or without hardware in a simulation-like environment. It is widely used in hobbyist, academic and commercial environments to support both wireless communications research and real-world radio systems. Learn more about GNU Radio at gnuradio.org.
The FSF supports the work of GNU Radio through its Working Together for Free Software fund.
If you'd like to pay by check or money order, you can do so by sending a check to the main Free Software Foundation address, with 'GNU Radio' in the memo field of your check. Our Bitcoin address for this campaign is 1LTQENAc5AAi9ERhgH3n6NT6izEizKfTZx.
The GNU Radio logo is copyright Rondeau Research, LLC, and is licensed under a Creative Commons Attribution-NoDerives (CC BY-ND 2.0) license.