I'm using the K3 with the Elecraft interface cable. I've noticed the
the CW drive power required by mine varies considerably, both with
temperature and SWR. If I set the K3 output for a KPA1500 output of
1500 W output initially, the output will drop to perhaps 1100 W when the
temperature stabilizes at around 65 C. (I've ruled out any change in
antenna impedance, etc.) A similar change occurs if the SWR goes from
1:1 to 1.2:1 when changing frequency or switching antennas. I haven't
changed the ALC from the default setting. Has anyone else noticed this?
73,
Scott K9MA
--
Scott K9MA
[email protected]
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