Dictionary![]() ![]() pulse'-am'pli•tude modula"tionPronunciation: (puls'am'pli-tOOd", -tyOOd"), [key] Telecommunications. modulation of the amplitude of a train of electric pulses used to carry signals (pulse' car"rier). Abbr.: PAM Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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