VSB Modulation MCQs

Practice VSB Modulation MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Communication SystemsVSB Modulation

A vestigial-sideband signal transmits?

  • ABoth complete sidebands with full carrier only
  • BOne complete sideband plus a vestige of the other
  • CCarrier only
  • DNo sideband components
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Correct Answer: B. One complete sideband plus a vestige of the other
Explanation: VSB retains one full sideband and a small portion of the other, reducing bandwidth while easing practical filtering.
Reference: Standard communication systems: VSB
Question 2
Communication SystemsVSB Modulation

VSB modulation is widely associated with television video transmission mainly because it?

  • ARequires zero bandwidth
  • BProvides a compromise between SSB bandwidth saving and practical filtering
  • CEliminates all noise
  • DNeeds no carrier recovery under any implementation
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Correct Answer: B. Provides a compromise between SSB bandwidth saving and practical filtering
Explanation: Video contains significant low-frequency content, making sharp SSB filtering difficult; VSB offers practical filtering with reduced bandwidth.
Reference: Standard communication systems: VSB application