[Elecraft] K2 power out increase with higher SWR

Don Ehrlich ehrlich at clallambroadband.com
Wed Aug 1 12:05:30 EDT 2007


It is a normal indication but ... the power is not actually increasing.  The 
power display is only accurate when feeding a tuned ( 50 ohm resistive ) 
load.  The untuned antenna is causing the reading to be in error.

Don  K7FJ


> I've noticed that with my K2 the power increases with highter swr.  While 
> adjusting the tuner as the swr goes up the power increases and sometimes 
> doubles and when going down the power goes down.  Just last night, I was 
> running 5 watts and switched to another antenna. I forgot to tune the 
> antenna before transmitting and the transmit power went from 5 to 10 watts 
> because, of the higher swr.  I've noticed this before.  Is this normal? 
> It seems to make more sense for the opposite to happen.
>
> Gary, N7HTS



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