On 6/30/07 7:01 PM, in article
1183255299.200569.150130@j4g2000prf.googlegroups.c om, "Radium"
<glucegen1@gmail.com> wrote:

> On Jun 30, 3:46 pm, Jeff Liebermann <j...@cruzio.com> wrote:
>
>> With AM, it's ALWAYS the high frequency
>> that acts as the carrier
>> and the lower that acts as the modulation.
>
> In AM, isn't the carrier the signal which always maintains a constant
> frequency and only varies by amplitude?

No! The Carrier amplitude is constant. Sidebands are generated in the
modulation process. At 100% modulation, each sideband has 25% as much power
as the Carrier. The sideband signals vary in amplitude, following the
modulation signal.


>
> If a carrier signal varies by anything other than just amplitude, then
> it isn't AM. Right?
>

You repeat yourself, and the answer is still no.