[Milsurplus] Harmonic question

[AKLDGUY .]

> except maybe that the RF device creates at its plate or collector
> the fundamental and a series of overtones, which are each individually
modulated.

That seems like a very reasonable answer, and well put.

73 de Neil ZL1ANM

On Sun, Apr 16, 2017 at 2:03 PM, Hubert Miller <Kargo_cult at msn.com> wrote:

> This is not a trick answer, altho i won’t hazard a theoretical
> explanation, except maybe that the RF device creates at its plate or
> collector
> the fundamental and a series of overtones, which are each individually
> modulated. A doubler, or multiiplier, of one modulated frequency
> or overtone WOULD give the unintelligible result you describe.
>
> Remember the SWL DX articles in the old radio magazines that noted AM
> station harmonics heard on the low SW frequencies?
> I just recalled one broadcast effort by some high school friends of mine.
> The second harmonic got out better than the fundamental,
> and that's what got them in trouble.
> -Hue
>
> >Suppose I have a properly adjusted AM transmitter and am operating it.
>
> What would a nearby listener hear at say, the third or fifth harmonic,
> assuming a good strength carrier at that frequency is present at his
> receiver?
>
> Is the bandwidth of the sidebands 3x or 5x, so all that's heard is
> incomprehensible splatter?
>
> This is not a trick question. The textbooks don't address this at all.
>
> 73 de Neil ZL1ANM
>
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