Breadcrumb Home > Dictionary > Index P pulse-time modulation: Meaning and Definition of Find definitions for: pulse'-time modula"tion Pronunciation: (puls'tīm"), [key] — Electronics. Electronics. radio transmission in which the carrier is modulated to produce a series of pulses timed to transmit the amplitude and pitch of a signal. Abbr.: PTM Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pulse repetition frequency pulsimeter TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: polymath Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language