[Elecraft] K2 Power Control

[brian]

Elliott Lawrence wrote:

>I finally finished my K2 and installed the various accessory pieces.  I had two problems both solved with the reapplication of a soldering iron!!!  It's a great little radio and I enjoy breaking DX pile ups and rag chewing at the 5 watt level.
>
>I have a question regarding the power control. I can adjust the power in 0.1 w increments per the manual.  However for example, if I set the level at 5.0w the resultant output is usually higher. Sometimes by almost a watt. Other times it will be a little lower.  I am using the ATU that is calibrated properly.  From band to band the same power isn't always the same with no adjustmnet to control.  Wonder if RF is getting in the ATU control circuitry or the feedback path from the RF board?
>
>Otherwise the radio is a joy to operate.
>
>Happy New Year to all,
>
>Elliott WA6TLA
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The SWR bridge likely makes all measurements with an assumed 50 ohm 
resistive load. With a reactive load I would assume that your mileage 
will vary. Or as said by someone else, accuracy can likely only be 
assured into a 50 ohm dummy load that is resistive (no complex impedance).

bb