PICAXE-08M Standalone Automatic Voice Keyer

After using a voice keyer in various contests and activations on my Icom IC-756pro3 I really found I missed one on my Icom IC-910H VHF/UHF transceiver.  There are commercial hardware solutions (like the MFJ-434B) and some software ones about but I don’t do commercial if I can help it 🙂 I’d previously been introduced to