amplitude modulation (AM)
Definition
Method of broadcasting electrical signals that cannot travel very far on their own. In this method, the signal is imposed or 'imprinted' on a carrier wave whose amplitude increases or diminishes with the amplitude of the signal. AM transmission operates in the 535 to 1705 kilohertz frequency band used for shortwave broadcasting and some citizen band (CB) aviation services. See also frequency modulation.
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amplitude modulation (AM) is in the Computer Hardware, Software, & Security, Data Management, Communications, & Networks and Information Science & Technology subjects.
amplitude modulation (AM) appears in the definitions of the following terms: frequency modulation (FM) and National Television Standards Committee (NTSC)
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