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Communication SystemsPulse Modulation

In pulse-position modulation (PPM), the information is represented by variations in pulse?

  • APosition in time
  • BAmplitude only
  • CWidth only
  • DDC resistance
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Correct Answer: A. Position in time
Explanation: PPM varies the time position of each pulse relative to a reference according to the message signal.
Reference: Standard communication systems: pulse modulation
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