Ronnie,

Two thoughts:

1. What is your power supply output voltage with the K3 transmitting.  This
measurement should be made at the K3. It should be approximately 13 volts.

2. Try transmitting into a 50 ohm dummy load vs. your antenna.  Is there
any difference?

3. Repeat 1 with the K3 connected to the dummy load.

These measurements may help you identify if you have a problem with the K3,
your antenna or your power supply + cabling from the power supply to the K3.


Robie AJ4F

On Thu, Feb 3, 2022 at 3:13 PM Ronnie Hull <w5...@comcast.net> wrote:

> I have had my K3 back to Elecraft repair TWICE in less than a year
> Got it back finally yesterday and put it on the air this afternoon
> Running 80w on CW on 20M and getting a high current alarm.
> What the heck? Does it have to go back AGAIN?
> Man I was close to pulling the trigger on a K4 but all thoughts out the
> window now
> Anyone know what this might be? Using a 50Amp power supply
> Ron W5SUM
>
> Sent from my iPhone
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