[Elecraft] K2/100 issue

[Don Wilhelm]

David,

That is the usual symptom when D16 and D17 in the KPA100 wattmeter have 
been damaged.  They can be damaged by static from snow, wind, rain or 
lightning coming in on the antenna feedline.  The best prevention is to 
disconnect the antenna when not in use - one of the inexpensive antenna 
switches can be used to quickly switch the K2 to a dummy load when not 
in use.

73,
Don W3FPR

David Douglass wrote:
> My K2/100 seems to have developed an issue.
>
> On key down I seem to be getting maximum power output, irrespective of where the power control is set. I am getting no power output indication at all on the inbuilt power meter in the K2!
>
> When I press tune, the K2 tells me I have 9.9:1 SWR and only a few watts of output, but my external meter tells me I have full output (well over 100w, and a 1:1 SWR). This happens irrespective of whether I use a dummy load or antenna. The K2 seems to work normally with the KPA100 disconnected, and RX is fine.
>
> I'm guessing I have a issue with the SWR/power output sensing in the KPA100, but would apreciate some help on what components to check.
>
> The K2/100 has been working fine to this point.
>
>