[Elecraft] Kat100

[Don Wilhelm]

Dave,

A little more information please.
Disconnect the KAT100 and connect the KPA100 into a dummy load - put an 
external wattmeter between the KPA100 and the dummy load.  Set the K2 
power at 50 watts.
Then do a TUNE - what is the power read on the external wattmeter.

If my guess is correct, it will be in excess of 100 watts which means 
diodes D16 and D17 in the KPA100 have been damaged and you have no power 
level control.
If the K2/KPA100 power control is working properly, the power level in 
TUNE will be close to 20 watts.

Regardless of whether the KAT100 has a problem or not, please make this 
check just to be certain the K2 and the KPA100 are working OK.

73,
Don W3FPR

On 10/1/2013 10:22 AM, Dave Pomeroy wrote:
> I just purchased a K2/100 with ant tuner.  The tuner won't tune above 
> 10 watts.  Works great when power is turned down to 10 watts or less.  
> Anyone with an idea?
> Dave