Re: Is there a program to display what modulation looks like?

The best way to gain understanding in the different modulation techniques is
to view active signal with both an oscilloscope (time-domain) and a spectrum
analyzer (frequency domain.

By varying the crucial parameters (AM depth and so forth), you can get a
really good feel for how the CW signal is altered when you change them.

Wayne-
(KC8UIO)
"Jack Hamilton" <jfh@xxxxxxx> wrote in message
news:vh23n11gil436jui107bim5a5d14t9394f@xxxxxxxxxx
> One my coworkers is interested in getting a license. I gave him a copy
> of the ARRL technician book and am looking around for local classes he
> can take. But while reading the book he can across something he doesn't
> understand - SSB vs AM vs FM modulation. I have to agree with him that
> the diagrams in the books aren't very clearly explained (though the ones
> in the General class book are better than the ones in the Technician
> book).
>
> So here's my question: is there a Windows application or web app that
> will display a carrier and its sidebands, along with the modulation, in
> a useful way?
>
> It doesn't have to take arbitrary audio input - a sine wave, a DTMF
> tone, a slowly rising tone, and a small voice sample would be enough. It
> should show something like an oscilloscope plus something like a
> spectrum waterfall.
>
> Does such a thing exist, perhaps as a Flash application?
>
>
> --
> Jack Hamilton
> California
> --
> <> Qui vit sans folie n'est pas si sage qu'il croit.
> <> François VI, duc de La Rochefoucauld


.

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