[Elecraft] Output power on K2 not stabel

[Don Wilhelm]

Dick,

Check out this application note at the Elecraft website - 
http://www.elecraft.com/Apps/Power_Control_Mod.html

Each K2 is a bit different in the overall transmit gain, so for most 
stable operation, the value of R98 must be determined experimentally.  
Be aware that increasing R98 too much will result in a power output drop 
on 10 meters (the band with the lowest transmit gain), so some 
compromise must be made - you select how much power reduction on 10 
meters is tolerable for you.

73,
Don W3FPR

Dick Grolleman wrote:
> Hi All
>
> I'm using my K2/100 to drive my Amp with 50 watts. But the output power is not stabel. When set to 50 watt the power goes from 50 to 100 and back, wich causes to much drive for my Amp. Other then that the K2 works fine with 100watts, barefood. 
> Any one knows this problem? And more important, how do is solve it.
> My K2 is serial nr 4072. It's build in sprng 2004. Rev B  KPA100
>
> Have the K3 on order, have to wait a few more months
>
>