I think that would be a cool way to build a SSB transmitter. I've been doing some reading as I'm investigating the possible use of a FPGA for creating a SSB signal to drive my uBITX (in this case the signal will be feeding a linear TX chain). In the analog days it seems the results were somewhat marginal. One technique described splitting things up so the carrier was "FM" modulated (I imagine that is an over simplification) and the envelope was used to modulate the carrier with another class D audio range amplifier modulating the voltage to the class E final.
It would seem that in this age of DSP processors and such this should be a realizable design. In my limited searching I haven't found much on realized designs. I'm really interested if others with more experience in this, know of working designs.?
I'd been thinking about building a tiny, portable, low power battery operated digital mode HF transceiver. By limiting it to just digital modes with constant power modulation types, it could use a class E output and be easy on batteries.?
Tom, wb6b
