Hi! I've been working with class E for a few years, and have constructed several solid state class E transmitters for 160, 80 and 40 meters. It is fairly easy to attain high power, and the devices us
Class E is so non-linear that you have to use a modulator for CW to prevent key clicks. Since it is practical on HF bands the only mode that may be used would be FSK or PSK. PSK31 would not be a good