My first real problem (or operator error?) with K3 SN 608 just occurred. I
got on 20 CW with my usual antenna (a resonant dipole) and the K3 is showing
a 2:1 SWR and folding back power. I bypass the tuner with this antenna
since its SWR is in the 1.2 to 1.3 range. My external SWR meter shows the
usual 1.3. If I engage the K3 tuner it will tune to a 1:1 indication on the
K3 meter and register the requested output power, but the actual output
power measured externally is in the range of 70 to 80 W for 100W on the K3
meter.
Next I tried a known good dummy load and the K3 acts the same with it -
indicates a 2 to 1 SWR. Interestingly, it works fine with the dummy load on
all the other bands (shows 1.0 to 1 SWR) except 20. It has worked fine
before on 20 with this same antenna and as far as I know nothing has
changed. I'm running firmware version 1.78.
Will welcome any ideas or suggestions
Thanks
... Craig AC0DS
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