[Elecraft] K3 TX power overshoot

[Eric Norris]

I see TX power overshoot when there is too much audio drive.  The 5th bar
should be flashing not solid on the ALC meter.  Also, do a TX GAIN
calibration procedure from the K3 Utility.

My KPA500 has endured some massive peak power overshoots without
destruction (1200w) before I readjusted things.  I also use an LP-100, and
it seems to have an extremely sensitive peak mode.


73 Eric WD6DBM

On Fri, Jan 11, 2019, 1:21 PM John Simmons <jasimmons at pinewooddata.com
wrote:

> I have a 6xxx K3 (not S). The output of the radio is monitored by an
> LP100A wattmeter set to peak reading. The K3 drives an AL80B. I have
> just done a TX power calibration. With the K3 power output set to 60
> watts and running SSB I will see about 64 watts output but occasionally
> see 74 watts peak on the LP100A. I am about to change to a solid state
> amp and am concerned that I will damage the solid state amp by overdriving.
>
> Is this normal behavior? If not, anything I can check, change or align?
>
> 73,
> -John NI0K
>