[TowerTalk] DB's, ad nauseam
Fri, 28 Jul 2000 13:26:42 +0200
May be you're referring to the so called "luxemburg effect":
"There is a very interesting ionospheric phenomena, the Luxemburg
Effect, that was exploited in the early days of the laboratory and was
a precursor of many perturbation techniques now used in many fields.
Telegren was the person who discovered the effect, namely that Radio
Luxemburg would heat the electrons in the ionosphere and thus transfer
the audio envelope on its signal to any wave traversing that portion of
the ionosphere by modulating the absorption."
...anyway, althought possible that huge energy fired against a small
portion of the ionosphere causes something (experiments are done with
radars at microwaves) to gas electrons, it's not a stright consequence
to produce a non linearity and reciprocal mixing of short waves.
Concerning the Luxemburg effect I'm strongly convinced it
never "occurred" other than in receivers with overloaded front ends.
> ---------- Initial message -----------
> From : email@example.com
> To : TOWERTALK@contesting.com
> Cc :
> Date : Fri, 28 Jul 2000 03:45:48 -0600
> Subject : Re: [TowerTalk] DB's, ad nauseam
> On Mon, 24 Jul 2000 "Maurizio Panicara" <firstname.lastname@example.org> writes:
> > Preface, if ionosphere wouldn't be a linear media we should be in
> > great trouble with the zilions of "gost" signals generated by
> > mixing of all radio waves there.
> I believe a study of ionospheric non-linearity (Luxumberg Effect?)
> was made 30+ years ago at Syracuse University. They built
> an array of several 3L Telrex beams at 13.9?? MHz to excite the
> WA3HRV (now K3RV) was at Syracuse then and through him
> I was able to purchase 5 of those antennas around 1971 or 72.
> I never did learn the results of the study.
> de Tom N4KG
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