[Elecraft] K3 FSK power transients

[Dave Hachadorian]

I'm getting my K3's set up for the CQWW DX RTTY, and notice 
that there is a significant variation in power output 
whenever the FSK goes from mark to space or space to mark. 
One of these K3's is driving a high gain tetrode amp, and 
the amp's screen current is jumping all over the place. The 
power transient is only at the time of transition. The 
steady-state power of the mark and space are equal.

I've complained about this before, but it seems to be even 
worse now. I'm using FW rev 3.30.

This amplitude modulation has got to be producing some 
illegal sidebands.

Dave Hachadorian, K6LL
Yuma, AZ























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