Vernon Matheson said: "Al what is your signal look like with the?5 watt PA out of line. Is it possible to disco it and just run your U3S barefoot."
Vernon, here is my U3S barefoot outputting 200mW and received locally on SDRplay RSP1 and piped into Argo. AGC is off in the RSP1. I did reduce the sensitivity of Argo to get a bit cleaner trace. But, it looks about the same as with the amp. :-(?