[Elecraft] K3 power output instability

[Andy Wood]

Hi Arliss,

I recently had a similar problem with my K3. I contact Elecraft and received
this response from Gary:

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See if it will produce 12w on 160-10m, and at least 8w on 6m, in Tune, with
the KPA3 menu set to Bypass. The VFO should be near the middle of the band.

Check the 3 LPA mounting screws on the bottom panel are all tight too.

Be sure it passes VCO MD CAL too, and the ADC REF menu is set as shown
below:
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In my case, running VCO MD CAL cured it. I also asked Gary why this value
may have been corrupted - here is his response:
"It does change sometimes with age or changes in temp, humidity, or
altitude. Not a bad idea to redo VCO MD CAL from time to time."

Andy  VK4KY



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