Most all SWR meters relative instruments. Meaning they provide an
indication in terms of ratio of one value of voltage to another value of
voltage. Thus better described as VSWR indication.
As to measurement of power, most all are calibrated to operate in a 50
ohm circuit. Departure from 50 ohms, where one uses the power
indication post tuner, will yield an error which is sometimes
significant, in the power indication.
73
Bob, K4TAX
Message: 10
Date: Tue, 18 May 2021 08:44:01 -0700
From: Tom Azlin W7SUA<t...@w7sua.org>
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] Funny K4 Story
Message-ID:<aefcac35-9173-0eb2-3ee9-2f83aabd1...@w7sua.org>
Content-Type: text/plain; charset=utf-8; format=flowed
I have an external meter on each of my antenna feedlines so I know the
actual SWR for each antenna. Also see a difference in the reported power
out on my (still) K3 versus the power reported on the external SWR/PWR
meter.
Tom w7sua
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