[Elecraft] KAT500 tuning problem

[john at kk9a.com]

It is possible that you have bad coax, a bad connection or water ingress in
your antenna system. It would be interesting to see if a manual tuner
remains stable.

John KK9A



Bill w2blc at nycap.rr.com 
Thu Feb 4 19:39:04 EST 2016
for the antenna that I know are not correct.

So far as RF in the shack - I might consider that - if things had not 
been working correctly until abut a month ago. Nothing has changed until 
then, causing all the efforts and modifications to isolate the problem. 
Other rigs - with ATUs - are working just fine with the entire station.

Everything RF is brought into the house to a well grounded bulkhead. 
Longest run from any rig/amp/tuner is 6 feet to the bulkhead. 
Interconnects are all as short as possible. Equipment is all connected 
to a central grounding point. In other words - been there and done that 
out of habit.

Tonight I am running barefoot with the antenna running direct to the K3 
- all is good. Tomorrow I will try to get everything back to where it 
was before this mess started and tune when I QSO as a routine and forget 
whatever else the tuner is supposed to do. Sure reminds me of what it 
was doing when I first got it.

A manual tuner will be ordered very soon and the KAT500 removed from the 
lineup.

I don't see a magic bullet on this - thanks for all the ideas.

Bill W2BLC