🚀 go-pugleaf

In article <1a86fd28-bebe-4f09-8d0b-1a6685d01ce3@b34g2000pra.googlegroups.com> GreenXenon <glucegen1x@gmail.com> writes:
>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.

  Eric answered much of this pretty well, and pointed out pretty well
that changing the frequency of the signal will produce energy at other
frequencies.

  See the first google result from  fm modulation bandwidth  at
http://en.wikipedia.org/wiki/Frequency_modulation

  Other results near the top are also helpful.


	Alan