Jim Ragsdale <j...@w5la.net> writes:

> I've been wondering if anyone else has experienced this. I have a K1
> with the KAT1 ATU and am using an A/B switch to swap antennas. Three
> times now when I swap antennas with the power on the K1, it shorts out
> diode D19 in the final. I can solve the problem by always powering
> down before the swap, but sometimes I forget to do that (has nothing
> do with my age. HI).
> Any thoughts?

Are you really sure there is no electrostatic charge on the antenna you
are switching to?  Do you have a bleeder resistor, or does the switch
ground the unused antenna?

73 de n1dam
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