[Elecraft] KPA500 Issue ?

[Jack Brindle]

The KAT500 and KPA500 don’t communicate, so there really is no way for the KPA to tell which antenna is selected.

is there a fault shown when this situation occurs? How are you determining that the KPA has no power out? And,
is there any power going into the KPA at that time?

Very doubtful this is a KPA500 problem unless there is a fault. And then it would be a KAT500 or antenna issue.
Take a close look at the transceiver to make sure it is actually outputting power to the KPA500.

73,
Jack, W6FB


> On Dec 18, 2024, at 3:10 PM, Paul Ecker <eckerpw at gmail.com> wrote:
> 
> Running K4D, KPA500, KAT500 and Win11 PC
> I have three antennas connected to the KAT500.
> The KPA500 works as expected with antenna 1 & 3 but when antenna 2 is
> selected , no power amplification is achieved
> Antenna 2 has low SWR on all bands.
> I did the testing with the same settings on the K4.
> So are there some settings in either the KPA or the KAT setup that I have
> missed that may be causing this problem.
> Any help would be appreciated
> 73 Paul w2eck
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