Radium wrote:
> Hi:
>
> Why do analog cell phones use FM? Why not AM?
>
> Microwave-frequencies can be done in AM just as well as FM? Why not
> use AM?
Why ? AM is more susceptable to noise and inrterference.
>
> In order to avoid "clipping" and interference with nearby stations,
> the modulator signal should be attenuated prior to D-A conversion and
> transmission. At the receiving end, the carrier signal should be
> amplified prior to demodulation and A-D conversion.
Yer what ?
geoff