[BC] AM Fidelity vs FM fidelity...
Burt I. Weiner
biwa at att.net
Sat Jun 23 09:10:50 CDT 2012
Richard,
I totally agree with what you are saying. I didn't mean to convey
the idea that the L-R channel was transmitted as an AM signal, but it
is an AM signal (process) within the FM baseband. I had assumed it
was understood that in the case of the FM's L-R signal that it was
within the FM signal's baseband. However, my point for this
discussion was that an AM modulated signal can carry wide bandwidth
audio regardless of the method of transport.
Sorry for the delay in commenting, I've been running around like a
head with my chicken cut off.
Burt
>From: "Richard Fry" <rfry at adams.net>
>
> >Consider the requirements for FM stereo and the fact that the L-R channel
> >is AM.
>
>The L-R channel is developed by an AM process, but it is transmitted by
>frequency-modulating the station's r-f carrier -- which gives the stereo
>subchannel much better S/N at the receiver than if it amplitude-modulated
>that carrier.
>
>RF
>
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