Da HAM.
Hardware open source
Oltre al software, sono stati sviluppati dei progetti di hardware open source, rilasciati sotto licenze Creative Commons o simili:
- HPSDR - High Performance Software Defined Radio
The HPSDR is an open source (GNU type) hardware and software project intended as a "next generation" Software Defined Radio (SDR) for use by Radio Amateurs ("hams") and Short Wave Listeners (SWLs). - QS1R VERB
The QS1R VERB is the most advanced open source digital down conversion (DDC) receiver board on the market. It features a Linear Technologies LTC2208 16 bit, 130 MSPS Analog Digital Converter (ADC) and an Altera EP3C25 Cyclone III FPGA. - USRP - Universal Software Radio Peripheral
The Universal Software Radio Peripheral product family allows you to create a software radio using any computer with a USB2 or Gigagbit ethernet port. Various plug-on daughterboards allow the USRP and USRP2 to be used on different radio frequency bands. Daughterboards are available from DC to 5.9 GHz at this time. The entire design of the USRP family is open source. - UWSDR
All of the specifications for the hardware and software will be open. The PC software is under the GNU Public Licence (GPL) and the hardware design will be under the Creative Commons licence. We hope that this openness will encourage others to join in and produce their own RF front-ends and expand the project to other bands.