Cingular cell phone service - Re: AM electromagnetic waves: 20 KHz modulationfrequencyonanastronomically-low carrier frequency

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Re: AM electromagnetic waves: 20 KHz modulationfrequencyonanastronomically-low carrier frequency

isw

2007-07-06, 10:33 pm

In article <C2B3FA99. 6DC3F%dbowey@comcast
.net>,
Don Bowey <dbowey@comcast.net> wrote:

> On 7/6/07 12:15 PM, in article
> isw-C7349C. 12150506072007@newsg
roups.comcast.net, "isw" <isw@witzend.com>
> wrote:
>
>
> Not unintelligible.... Donald Duckish.

I think you are confusing *single* sideband, for which that is correct,
and *double* sideband (which we were discussing), for which it is not
true.

> On a more practical side, however, most receiver filters for ssb will
> essentially remove one sideband if there are two, and can attenuate a
> carrier so the local product detector can do it's job resulting in improved
> receiving conditions. But this is more advanced than the Ops questions.

Doing it that way will work, but it's not "fair", because you are not
actually demodulating a DSB signal (which was the subject of the
discussion).

Isaac

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