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Define the term modulation. With reasons for modulation.

Define the term modulation.

Modulation is the process of making a signal suitable for sending over a transmission medium.


State THREE (3) reasons for modulation.
  • Frequency translation to modulate a radio frequency carrier with an audio frequency signal.
  • To improve the signal-to-noise ratio by increasing the bandwidth.
  • To divide a bandwidth up into smaller communications channels (multiplexing).