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Text File  |  1992-09-02  |  288b  |  8 lines
  1. In radio, the intermittent change of
  2. frequency, or phase amplitude, of a radio
  3. carrier wave, in accordance with the audio
  4. characteristics of the speaking voice, music,
  5. or other signal being transmitted. See
  6. pulse-code modulation, AM (amplitude
  7. modulation), and FM (frequency modulation).
  8.