[Elecraft] K3 - KPA500 Power control

[Arie Kleingeld PA3A]

Hi all,

My K3 and KPA500 combo seems to overshoot the powersetting at the 
beginning of a morse dot or dash. It happens with all morse code, not 
only the first dot or dots.

Pwr at start of dot: abt 570 W, steady state pwr 520 W. It does show on 
my peak reading measurerents and the 550W led on the KPA lights with 
every dot/dash. Holding the key 440W led is off, so that confirms my 
other measurements.

Checking the manuals does not help me at this time.

Here's the setup:
K3 #1255 with all HW mods and FW 4.60 / 2.80, running 33W on 12m
TX ALC On (normal)
EXT ALC Off

KPA500 #1497, brandnew, FW 1.23
ALC THR 210 (default)

KAT500: BYP

K-line is connected via the elecraft aux cables.




So.....What did I miss, or is this normal?


73
Arie PA3A