Ian:
I read your description of the GW4RFX measurments, which strike me as
being a quite practical approach to estimating splatter. Yes, this procedure
could readily be codified and performed with modern analyzers (especially
programmable ones.)
Intuitively, this measurment procedure seems to fulfill our need to
evaluate the amount of crap that many of us are subjected to on a daily basis
by selfish stations and operators (it isn't just the big amps - I regularly
receive signals from stations with very high performance anternnas that go
well into the red on my S-meter, and parking within 10khZ of one of them can
be futile.)
I would also be an advocate of such a paradigm for this difficult
measument issue. But before warming up my analyzer, I would like to pose one
question which addresses the potential value of this. That is, how does this
test(s) result that he obtained by such averaging compare with standard two
tone tests in situ? Let me be a bit more specific.
My suspicion (that means somewhere between an 'opinion' and a 'fact')
is that if standard two tone tests were performed, using a few different
audio frequencies and applying some weighting/averaging rule to them, were
applied to the same setup, there would be a large correlation with the
referenced results. I would like to see that done (maybe it has and the news
just hasn't arrived here yet.) as a qualification for or against the
spectrally averaged method as proposed.
73
Eric K8LV
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