[Elecraft] KAT-500 + KPA-500 / SWR Thresholds

[Andy Durbin]

"Actual Results: The ATU-500 clicks between Bypass and MAN (by "clicks", I mean only what I can infer from the behavior -- it is as if the ATU-500 is either using the memory-based ATU settings of the previously tuned settings and switching between that and what seems like a Bypass mode) -- the clicking is rapid and persistent at the onset of the CW message."

How does your KAT500 know what frequency to use?  Does it have a serial data interface or does it depend only on the internal RF counter?

What KAT500 mode (AUTO, MAN, BYP) is selected when you observe this anomaly?

I ask these questions because I doubt the problem has anything to do with SWR thresholds.

Andy, k3wyc