[Elecraft] Odd Power Control on 30M/K-3 and KPA-1500

[Pete Smith N4ZR]

I wonder if anyone else has seen this?  when I transmit on 30M, I turn 
my K-3's power down so as to only put out 200 watts.  Each time I 
transmit (on FT8), the amp's output power starts quite low, rises second 
by second to around 270 watts and then drops back to the desired 200 
watts (+/-).  Later in the same operating session, output power from the 
KPA-1500 varies between 175 and 225 watts three or four times during a 
single transmission.

-- 
73, Pete N4ZR