A two tone IMD test on an RF amp does _not_ use audio frequency!
For your test use two RF generators. One set for 30.000.00MHz
the other set to 30.001.00 MHz. Look at the output with an
Spectrum analyser.
Alex
===================================
If we can accept the notion that GUNS are
the killers and not the people, why is it that
we can not accept the idea that CARS are
the speeders and not the drivers?
Alex, trying to understand the world around.
==================================.
----- Original Message -----
From: "Jerry Flanders" <jflanders2@home.com>
To: <amps@contesting.com>
Sent: Sunday, December 16, 2001 5:09 PM
Subject: [AMPS] Two-tone audio generator for testing IMD?
>
> Is software available for the PC sound card to generate two audio tones
for
> doing some IMD tests on this 5CX3000A amp that is slowly taking shape
here?
>
> Since the driving rig is already interfaced to the PC's sound card, I
> _think_ all I need to generate tests is a piece of software to generate
the
> tones (along with my other rig and other PC to view the spectrum with its
> own sound card and software).
>
> Know of any dual-tone generating software cheap/free? Used it for this
> purpose? If no dual-tone software, what single-tone software is available?
> (I have two sound cards in this PC and guess I could mix externally.)
>
> Jerry W4UK
>
>
> --
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>
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