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Amplitude modulation (AM)
A system of changing the voltage of a radio-frequency carrier to allow it to carry information.
The amplitude of the carrier is changed (modulated) by superimposing an information-carrying audio-frequency signal on it. The amplitude of the modulated carrier varies in the same way as the amplitude of the audio-frequency information wave.
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- Part of Speech: noun
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- Industry/Domain: Aviation
- Category: Aeronautics
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