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Which option describes guard band ?

Which option describes guard band ? Correct Answer The small unused bandwidth between the frequency channels to avoid interference.

Analysis:-

Guard band:  

  • It is a small frequency range that separates two ranges of wider frequency.
  • It is basically used in Frequency division multiplexing(FDM).
  • It saves channels from interference by providing gaps between their frequency ranges.
  • It also prevents crosstalk, noise, or interference from other modulated signals on the same transmission medium.
  • Adding a guard band ensures different frequency ranges transmit simultaneously without interfering with each other on the same channel.
  • It can be applied to both wireless and wired transmission systems.

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