> I always have a problem when it comes to trying to make
> perfect
> measurements when in reality it is the entire system that
> counts. That is
> to say if you exciter is good enough to put on the air and
> you goal is to
> add an amplifier and put the pair on the air, then just
> make a simple two
> tone test using the two.
Since the IMD can add or subtract with variations in power
level, cable lengths, and other things I would think a
person would want to know how much contribution the
amplifier makes when determining how good the amplifier is.
If you want to know the exciter and amplifier's combined
bandwidth with normal speech, then you should measure it
that way. A two-tone IM test is pretty much useless of you
want to know bandwidth.
73 Tom
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