[Elecraft] RF in Microphone

[Jim Kutsch]

Some progress but some new questions. When transmitting at 12 Watts without
the KPA3 engaged, the transmit audio is completely fine. But, once I go to
13 Watts and hear the KPA3 relay engage, the audio distortion is back. I'm
beginning to think I have a CONF setting incorrect or the KPA3 is bad. Even
with 12 W driving the KPA500, no audio distortion.
The K3S has the KPA3 module but does not have the KAT3 since I'm using the
KAP500.

I have CONF:KPA3 set to PA NOR. Am I missing another menu setting somewhere?

Jim