Use an antenna analyzer to determine the actual complex antenna
impedance. I've always viewed SWR as more of a hocus pocus value, easy
value to obtain, but very broad in definition as it is a ratio between
two impedance, both usually unknown.
Chances are the antenna or a connector or feed line or lightning
protection device is breaking down under power. The SWR meter won't
show this.
73
Bob, K4TAX
On 12/19/2022 4:55 PM, [email protected] wrote:
Message: 19
Date: Mon, 19 Dec 2022 20:59:21 +0000
From: "David F. Reed"<[email protected]>
To:"[email protected]" <[email protected]>,
[email protected]
Cc: Elecraft Support<[email protected]>
Subject: [Elecraft] KPA1500 Faulting for High SWR inappropriately
Message-ID:<[email protected]>
Content-Type: text/plain; charset=UTF-8; format=flowed
My KPA1500 has started faulting inappropriately for High SWR.
I say inappropriately because all 2 of my SWR meters (K4D, KPA1500,
Palstar HF-AUTO) show an SWR of between 1.1:1 and 1.2:1. with just the
K$ transmitting and also with the KPA1500 in fine as it faults out.
Any ideas?
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