One such project came to our attention recently, the Minima, an all-band HF SSB transceiver ... and no doubt with some kit suppliers producing PCBs and kits. We think this can only be a good ...
In a previous post I described how SSB radio equipment worked and provided an example of a single-band 20m SSB transceiver ... and front-end cover all HF bands up to the VHF band 2m.