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Re: [Amps] 4CX1500B

To: "R.Measures" <r@somis.org>
Subject: Re: [Amps] 4CX1500B
From: "Peter Chadwick" <g3rzp@g3rzp.wanadoo.co.uk>
Date: Mon, 26 Sep 2005 18:44:41 +0100
List-post: <mailto:amps@contesting.com>
Rich said:

>I do not set the meter.  With the RF gain at 10, the splatter moves the
meter to some level, perhaps c, half-scale.  I note the average
reading, move to the fundamental frequency, and add whatever attn is
needed to achieve the same reading as before.  The # of db on the attn
is the total IMD level.<

Hardly an accurate quantitative measurement. You can probably get within
+/-3dB uncertainty.

That in itself is probably good enough, for what you're trying to do, though
73

Peter G3RZP




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