Category Archives: comms

The PCB is designed for linking  analog radio repeaters by  using David Rowe’s CODEC2  speech codec codec2. It takes audio from an analog repeater audio output (ideally the FM detector so that it can  measure SNR) , and encodes this … Continue reading →

I developed a GPS stabilised frequency reference that goes about disclipining an oscillator in a different way than most.  It can also function as a stand alone WSPR beacon. The power point file is available on this site named ddsref.ppt … Continue reading →