The Lesser Chirpy transceiver

This was designed for 10m when the solar cycle was on the up (rising sunspots). It could still be useful in Es conditions, or it might make the basis of a transceiver for other bands. I can already see how one capacitor can be saved! It uses FSK to eliminate chirp. In the past, I connected an SDR to the earpiece output and this allows much of the CW band to be covered on RX.

See https://sites.google.com/site/g3xbmqrp3/hf/chirpy .

See also https://sites.google.com/site/sm6lkm/saqrx/ for a possible SDR .