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Briefly explain about Amplitude Shift Keying (ASK)

Amplitude Shift Keying(ASK) :

The short form of Amplitude Shift Keying is referred as ASK.It is the digital modulation technique.Amplitude Shift Keying (ASK) is a type of Amplitude Modulation which represents the binary data in the form of variations in the amplitude of a signal. Any modulated signal has a high frequency carrier. The binary signal when ASK modulated, gives a zero value for Low input while it gives the carrier output for High input.


Advantages of ASK :

  • It offers high bandwidth efficiency.
  • It has simple receiver design.
  • ASK modulation can be used to transmit digital data over optical fiver.
  • ASK modulation and ASK de-modulation processes are comparatively in-expensive.

Disadvantages of ASK :


  • It offers lower power efficiency.
  • ASK modulation is very susceptible to noise interference. This is due to the fact that noise affects the amplitude.

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