He took inspiration from the projects that used a PIC microcontroller, but decided to add his own twist by using a Raspberry Pi to build a multi-mode beacon transmitter. At the center of this ...
[Ashhar Farhan, VU2ESE] hopes to change this with the sBITX, a hackable HF SDR transceiver ... slice of RF spectrum to an audio codec, which send the digitized audio to the Raspberry Pi.