[Elecraft] KAT100 Problem

[Don Wilhelm]

Larry,

I would suggest that lightning, wind or rain static has damaged the 
wattmeter diodes in the KAT100 so it can no longer properly measure 
either power or SWR.  Those are the 1N5711 diodes at D1 and D2.
You might also check diodes D16 and D17 in the KPA100 while you are at 
it - it is rare that the KAT100 diodes are damaged when the KPA100 
diodes escape damage.

73,
Don W3FPR

On 10/8/2011 2:35 PM, Wolfgang, Larry, WR1B wrote:
> While trying to make a few contacts in the PA QSO party, I hit the Tune button to adjust the match to my antenna. All of the LEDs on the KAT100 light up and the relays cycle for about 5 seconds or so. Then will all of the LEDs still lit and the display showing 9.9:1, the radio switches back to receive. The same thing happens with all of my antennas, on all bands. I'll have to run without the tuner for now, but I'm looking for suggestions on what to look for. Anyone else have similar experiences?
>
> Actually, the tuner has done this a few times, but usually works okay when I hit the Tune button again.
>
> 73, Larry Wolfgang, WR1B
>