[Elecraft] KPA500 Issue?

[Rick NK7I]

Because of random mental gas releases (brain farts); I try to simplify as much as I can.  In the heat of the DX/contest moment, small thing matter so make them simple.

My K4 antenna port 1 is relabeled “KPA1500” and port 2 is “Dummy” (the load, not the operator).

You may wish to do similar, using the tools that Elecraft designed into the K4.

73,
Rick nk7i

> On Dec 19, 2024, at 12:57 PM, Jack Brindle via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> 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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