He says the transmitter challenge will not occur until after the release of several upcoming Part 15 broadcasting products.
As I said over in the other forum, I am quite keen to see what these could be. A new transmitter perhaps? An AMT3000 replacement, or perhaps even a Rangemaster/Procaster alternative? A transmitter would be my keenest wish, but I guess we will need to wait and see.
In the meantime, I'm sitting at the bench here, very gradually working on a scratch-built AMT3000 because I was silly enough to sell mine without realizing that one day, they would be hard to come by.