[Elecraft] KPA500 hi swr error

[Robert Redmon]

I put up a 40 meter vertical with elevated ground plane today. The swr 
is 1:1 at the bottom of the band (where I operate). For some reason, 
after sending a few characters, the KPA 500 suddenly shows high swr and 
faults. After resetting, the cycle begins again. I have an analog 
swr/watt meter following the KPA500, and it does not show the swr 
change. It has also done this on my 80 meter antenna. What is going on?

Bob

-- 
Robert Redmon K5SM
AMA 58073