RadioBox - (by Urlich Habel)
The RadioBox is a complete transmitter and receiver done on the FPGA. You can directly connect an antenna to the SMA RF In 2 port for receiving. At the SMA RF Out 2 port, you can listen to the demodulated signal. The transmitter does it at the same time on the SMA In/Out 1 connectors. When an external SDR-software is desired, you can select the Linux AC97 sound driver as stereo channels in both directions to feed the FPGA or to grab the data streams. To connect to a SDR, you can set the two AC97 channels to the I- and Q-signals of the QMIXers modulation.
More details about the project can be found at the Wiki of RadioBox at the following link:
Warning
Unfortunately, the documentation regarding RadioBox as well as the corresponding GitHub page were deleted by the author, and we are unable to provide further information or support for this application. Some information and code can be found in the RadioBox Source Forge archive.
Note
The RadioBox application is available on the Red Pitaya marketplace.