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Modulation

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About 1 pages (66 words)
Modulation Summary

In electronics, a technique for impressing information (voice, music, picture, or data) on a radio-frequency carrier wave by varying one or more characteristics of the wave in accordance with the signal.

There are various forms of modulation, each designed to alter a particular characteristic of the carrier wave. The most commonly altered characteristics include amplitude (&see; AM), frequency (&see; FM), phase, pulse sequence, and pulse duration.

This is the complete article, containing 66 words (approx. 1 page at 300 words per page).

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    Modulation
    A periodic fluctuation in the amplitude, frequency or phase of a noise.... more

    Modulation
    n. Systematic variation in the intensity and loudness of a segment (especially a voiced fricative) ... more


     
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    Modulation from Encyclopedia Brittanica. ©2009 Encyclopedia Brittanica. All rights reserved.

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