John,
Some 'uncertainty' can be expected in the KXAT1 wattmeter indication,
but not as much as you report - +/- .2 watts is about what you can
normally expect. It does take a little time for the power indication to
settle down (the microprocessor is doing a lot of things during TUNE).
I would check the KX1 and the KXAT1 for good solder connections as a
first course of action.
73,
Don W3FPR
John Shadle wrote:
Just wondering, but should I expect wild fluctuations in power out
measured by the KXAT1 after tuning?
For example, I just installed the tuner and have calibrated it to the
best of my ability. After tuning to a dummy load the power out on 40m
shows values of 1.9 to 2.8 and pretty much everything between those values.
I checked to make sure nothing was touching anywhere or there were any
shorts and didn't see it. I was just wondering if this is normal
behavior (i.e., the wattmeter isn't that accurate) or if something might
be wrong otherwise.
I'll post photos sometime soon of the final build for S/N 1601.
Thanks.
-john W4PAH
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