On 2/15/2026 9:58 PM, dyno lab wrote:
Sounds like you have a really good one and running it at 1250 Watts goes a long
way in keeping it alive.
1250W is only under the highest stress operation -- high duty cycle, and
very long TX periods on 6M, it's least efficient band, and for the
reasons noted. Meteor scatter QSOs can take 20-30 minutes to complete
when there aren't a lot of rocks.
Nearly all HF and MF operation is contesting, legal limit, constant
CQing on CW and RTTY.
I have a feeling you keep an eye on the match.
The KPA1500's protection circuitry does that. It faults when stressed, I
let the tuner do its thing, and continue.
I have friend that runs her's at a full 1500 Watts all the time and gets away
with it.
73, Jim K9YC
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