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Re: [Amps] 4CX250 IMD

To: amps@contesting.com
Subject: Re: [Amps] 4CX250 IMD
From: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 01 Oct 2007 08:08:09 +0100
List-post: <mailto:amps@contesting.com>
> This thread has me wondering how accurate IMD or even PEP was measured 
> in the late 50's, early 60's. Would the readings that National provided 
> for their 4CX1000A military amp hold up to todays techniques and 
> instrumentation?
My guess:

Comparison against fixed attenuators using either spectrum 
analyser or receiver should give fairly good accuracy of relative 
values.

Calibrating a diode detector against cw should give reasonably 
accurate pep readins.

Steve
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