It's been said before. Check your cables and connectors for arcing. It
won't happen with lower power but as the voltage goes up with higher power
it may arc across a bad cable or connector. Possibly even in a tuner.
Can you test with different cables or a dummy load?
73,
Mark
On Sun, Dec 30, 2018 at 5:35 PM Steve wrote:
>
>
> Sent from my I-Phone
>
> Begin forwarded message:
>
> > GE, folks
> > My KPA1500 (s/n 121) has developed a problem:
> > When applying power (15-20W) from the K3 to the amp, it immediately
> faults to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR
> indicator shows high SWR as the amp faults. 100w only from exciter will
> cause ATU to tune to 1:1 but when amp is switched on, it immediately faults
> as above. Looked through archives and manual. No mention of this particular
> fault. Any ideas would be appreciated.
> > 73 and HNY
> > Steve AA4V
> >
> >
> > Sent from my I-Phone
>
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