[Elecraft] K3 hi SWR between radio and KPA500 on 160M only

[Bill OMara via Elecraft]

It seems I developed a high SWR between the K3 and the KPA500 only on 160M.

 

I did test the output of the K3 on 160M into a dummy load and it's 1:1.

 

I then hooked the K3 back to the KPA 500 and repeated the hi SWR.

 

I didn't test all the band but I did test 80 and 40 and they are work fine
in STBY and OPER (KPA500) but on 160M I get a high SWR with both STBY and
OPER on the K3.

 

I testing was done into dummy load to confirm the problem.

 

Any help where to start in the KPA 500 would be great.

 

Thanks

 

73 Bill

 

 

 

Please use W4RM at AOL.COM <mailto:W4RM at AOL.COM>  as my primary account