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pulse-time modulation

[puhls-tahym]
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noun Electronics.
  1. 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

Origin of pulse-time modulation

First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018