WSPR Audio Signal Source
Unshackle your portable SSB QRP transceiver from your computer to transmit WSPR beacons from a portable location, or use your home station as a PC-less beacon. This project uses a Microchip 16F628A PIC to control a simple audio oscillator.
WSPR Audio Signal Source v3.0
This is an updated version of the WSPR Audio Signal Source that includes on-chip generation of WSPR message and ‘on-the-fly’ GPS generation of grid square location for portable operation.