[Elecraft] K3/KPA500/KAT500 SWR problem

[K4ia]

That points to a common connector as the problem  Check your common connector  - something before the antennas.  

Craig Buck 

> On Dec 30, 2013, at 3:14 PM, Jim Bennett <w6jhb at mac.com> wrote:
> 
> They are on all of MY various HF antennas: doublet, Inverted L's, and a ground mounted vertical.
> 
>> On   Monday, Dec 30, 2013, at  Monday, 11:54 AM, Jim Miller wrote:
>> 
>> Do you have coomon mode chokes on you feed lines?
>> 
>> Jim ab3cv
>> 
>> On Dec 30, 2013, at 1:29 PM, Bill W2BLC <w2blc at nycap.rr.com> wrote:
>> 
>> 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
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