[Elecraft] FW: K3/KPA500/KAT500 SWR problem

[Bill W2BLC]

In regards to proper grounding etc.: I think it is safe to say that K3 
owners have a very good grasp of what is needed to construct and operate 
a proper station - safety and RF wise.

I do, yet still went back over every last connector/connection/lug, etc. 
Everything is locked down properly here. No baluns, good coax, and 
everything is mechanical and soldered along the entire antenna routes. 
Yet, the problem continues. Perhaps the most disconcerting part is that 
my other auto tuners/rigs do not exhibit this difficulty. Perhaps the 
KAT500 is seeing something the others do not.

The difficult part is never knowing when the tuner will take off and the 
fact that MANUAL selection does not appear to make any difference. I 
have been using MANUAL for a couple of months. I do not see that it has 
made any difference in occurrences. The instances of "run-away" are 
random and it is usually days between events.

Bill W2BLC K-Line