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When an oscilloscope has a low bandwidth, which type of signals CANNOT be displayed correctly?

When an oscilloscope has a low bandwidth, which type of signals CANNOT be displayed correctly? Correct Answer Square wave

If the bandwidth is too low following consequences arise:

  • An oscilloscope will not resolve the high-frequency changes.
  • Amplitude will be distorted,
  • Edges will vanish,
  • Details will be lost

 

Square wave:

  • A square wave with enormously fast rise and fall times, generating powerful harmonics.
  • In this instance, there is a significant bandwidth because of the large amount of power in the harmonics outside the fundamental frequency.
  • All digital signals can be represented with the pulses which are similar to a square wave. So, if bandwidth is low then this signal can’t be displayed correctly.

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