[Elecraft] KPA500 Issue?

[Jack Brindle]

I agree with Rick on this one. There are three antenna ports on the KAT500, and four (I believe) on the K4. Don’t confuse KAT500 Antenna 2 with K4 Antenna 2, they are not the same port.
Only one output from the K4 goes to the KPA500 and then to the KAT500. If the K4 has Antenna 2 selected, and the KPA is connected to Antenna 1, then the KPA will see no power in.
With no power in, there will be no power out. But the antenna connected to K4 Antenna 2 will see power.

You might want to draw a diagram showing the station components (K4, KPA500 and KAT500), add which control program handles each, then post it to remind you what will
happen when you select various ports.

73,
Jack, W6FB


> On Dec 19, 2024, at 2:18 PM, Paul Ecker <eckerpw at gmail.com> wrote:
> 
> Jack & Bill
> Problem resolved sorta of.
> Solution: Discovered my own forgetfulness or senior brainfart !!
> I had forgotten that I had antenna 2 connected directly to the K4D for
> Diversity purposes, and not connected to the KAT500.
> Which brings up probably a dumb question. When I transmit on this antenna
> connected to Ant 2 on the K4, I see power out on the K4 meter, isn't it
> still traveling the same path thru the KPA-KAT.  Why am I seeing zero on
> the KPA power meter?
> 
> 73 Paul w2eck
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