Mike,
Is the K2 displaying 165 watts? Or is the K2 displaying 0.2 watts or
lower while an external wattmeter is displaying 165 watts?
What is your test setup that gives you a 7:1 SWR? If you are feeding a
resistive 50 ohm dummy load with good coax, the wattmeter (either
internal or external) should read 1:1 even with a KPA100 problem.
Tell us more so we can help with your problem -
Taking a very wild guess, you either have a non-functioning wattmeter in
the KPA100, or the KPA100 wattmeter is not calibrated, or you have a
parasitic oscillation in the KPA100.
Since this is a new kit - do you have blue toroid cores at L16 and RFC1
or do you have red toroids at L15 and L16? And tell us what the value
of C31 is and whether you determined the value by looking at the
capacitor (preferred) or whether you just looked at the parts
list/schematic.
We need the answers to all these questions before we can advise you further.
73,
Don W3FPR
Mike Geddes wrote:
Greetings. I recently finished my K2 KPA100 kit. It seemed to work okay
initially, then last night started to exhibit some strange behavior. It
would transmit correct power on tune under 11 watts (and show low SWR),
but on anything over 11 watts, on tune, it would transmit around 165
watts and show an SWR of around 7:1!! And giving High Current message
Is there anything I should start looking for initially?
Any suggestions are appreciated.
Thanks,
Mike
N4JX
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