I second Simon's opinion: FT-8 is a highly interactive mode with seconds to interact and was never intended as a beacon mode. Beside that the QSO runs in automatic mode. No chance to implement this in the U3s. And the crocodiles are coming into the FT-8 pond, so no chance for a 200 mW signal.
73 de Hajo
--- Cela est bien dit, mais il faut cultiver notre jardin.
Hajo Dezelski