Cellular forums Home > Archive > Cingular cell phone service > July 2007 > Re: AM electromagnetic waves: 20 KHz modulationfrequencyonanastronomically-low carrier frequency









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

2007-07-06, 12:33 pm

isw wrote:

>
> And requires, for proper reception, that a carrier be recreated at the
> receiver which has not only the amplitude of the original, but also its
> exact phase. Absent some sort of "pilot" to get things synchronized,
> this makes reception very difficult.
>
> Isaac


Try a Costas loop.

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