I just completed my first PSK31 QSO with the K2/100 at about 30 watts. The
heat sink got very hot so I took the power down to 20 watts. The KPA100
option is rated at 40 watts with PSK31 and 25 watts with modes like MFSK16.
The power was read with a meter that had a peak reading setting. The average
power was even less. That is because PSK31 doesn't have a full 100% duty
cycle.
The heat sink did get very warm. I know I can put a computer muffin fan on
the heat sink. I saw something on the N0SS web site about this. I don't know
how hot is too hot. The right side panel on the K2 also got very warm. I
don't want to ruin the KPA100 option, but I did stay well with the
recommeded limits.
73,
Steve N6VL
K2 #2289
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