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amplitude modulation, AM (s) (noun), amplitude modulations (pl)
The deliberate processing of a carrier signal which is used in ordinary radio and TV broadcasting: The amplitude modulation varies in accordance with the level of the modulating signal while transmitting the video portion of a television signal.

Variation of the amplitude modulation of a carrier wave, commonly a radio wave, presents fluctuations in the audio or video signals that are being transmitted.

A higher amplitude modulation wave is interpreted as a "1" and a normal wave is interpreted as a zero.

The method of changing an amplitude modulation is known as "amplitude shift keying", or ASK.

This entry is located in the following units: ampli-, ampl- (page 1) -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 7) mod- (page 1) Radio Frequency Identification (RFID): Definitions (page 1) -tude (page 1)
verb "to be": am, is, are; was, were; will be; has been, have been; had been; being (verb forms)
To exist: "He will be here later."
This entry is located in the following unit: verbo-, verb-, verbi- (page 3)