Re: Question about frequency modulation

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From: SidewaysLogic
Date: Wed, 27 May 2009 16:39

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On May 27, 9:02 am, GreenXenon <glucege...@gmail.com> wrote:
> Hi:
>
> In frequency modulation:
>
> Increasing the modulator’s amplitude will increase the extent to which
> the carrier frequency varies from baseband. In other words, a larger
> modulation amplitude will cause the carrier to occupy a larger range
> of frequencies than a smaller modulation amplitude
>
> Increasing the modulator’s frequency will increase the rate in which
> the carrier frequency changes. So why is it impossible to transmit a
> higher-frequency modulator signal on a lower-frequency FM carrier
> signal?
>
> I can understand how increasing the modulator’s amplitude will
> increase the bandwidth the carrier uses.
>
> I don’t understand how increasing the modulator’s frequency will
> increase the bandwidth taken up by the carrier. Higher modulator
> frequency simply means the carrier’s frequency will vary faster; it
> will not take up more frequencies unless the mod’s amplitude
> increases.
>
> Thanks,
>
> Green

Here, go down to the example 2, and click on it and I think the dude
might explain it to you -- if you got speakers on your PC.

http://cnx.org/content/m15482/latest/

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From: SidewaysLogic <sidewayslogic@gmail.com>
Newsgroups: uk.tech.broadcast,alt.radio.broadcasting,aus.radio.broadcast,ba.broadcast
Subject: Re: Question about frequency modulation
Date: Wed, 27 May 2009 09:39:52 -0700 (PDT)
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