[Elecraft] K3s/KPA500 communication issue?

[Tom Doligalski]

This question has come up several times over the years, and I have always followed the threads closely, since I have occasionally had the same issue.

The consensus seems to indeed involve a communication issue: the KPA500 sends a signal to the K3 when its operational status changes, but for whatever reason the K3 fails to see message. There is no expectation that the K3 will “ACK” the signal from the KPA500.

I have found it important to watch the K3 LCD to see that the operational change has actually been received and acted upon. If not, cycling the OPER switch on the KPA500 until you actually see the K3 is in the desired mode.

Works every time…

Tom W4KX

From: a45wg at sy-edm.com
Sent: Sunday, November 15, 2020 5:47 AM
To: Elecraft Reflector
Subject: Re: [Elecraft] K3s/KPA500 communication issue?

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