Off-topic: EER SSB class-E modulation (QCX-SSB, µSDX, (tr)uSDX et al.)
I'm way, way late to the EER SSB + class-E party and trying to catch up. I don't have the benefit of having read the hundreds (thousands?) of forum messages that have transpired in that community. More importantly, I'm having trouble following the development history.
Does anyone here have a good working knowledge of how to correctly apply EER SSB (envelope elimination and restoration) modulation to class-E PAs? Because I have some questions about the implementation details as seen in the current low-cost, QRP projects.
I've been working my way through this paper: https://core.ac.uk/download/pdf/148657773.pdf