Posted by
Mike Markowski on
Jun 22, 2005; 3:36pm
URL: http://elecraft.85.s1.nabble.com/KPA100-power-on-20m-30m-update-tp379639.html
This is a follow up to my own problem for the sake of complete Elecraft
archives. :-)
A few weeks back I mentioned having slightly lower power on 30m. When
the power knob was at its max, I had 97 W while all other bands were
close to 120 W. What I forgot to mention is that on both 20 m and 30 m
I always got the HI CUR warning, though the warning threshold was set to
3.5 A.
I recalibrated the PA and then got 100+ W on 30 m. But a subsequent
check a week or so later showed I was back down to 95 W into a dummy
load. Not a big deal, really, but I didn't like the HI CUR message and
spoke with Gary at Elecraft about it. He recommended changing the C80 &
C81 caps. After doing so, I no longer get the HI CUR warning. In
addition, I get slightly over 100 W on all bands rather than the nearly
120 W on most. Whether that it's due to new caps or better calibration,
though, I don't know... I posted this followup because initially it
seemed that a simple recalibration took care of the issue, but turns out
I needed new caps like the other guys who were suffering from even worse
side effects of their C80 and C81!
73,
Mike AB3AP
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