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Question Bank (2 marks) · Q10

Q.What are the disadvantages of single side band transmission?

Karnataka PUCTextbookShort· 2mImportance★★★★★est
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[!TLDR]

SSB is more complex and costly, needs carrier reinsertion and precise synchronization, and is hard to tune.

Because single-sideband transmission suppresses the carrier and one sideband, the receiver no longer has a reference carrier and must rebuild it accurately to demodulate the signal. This makes the system demanding to build and operate.

Main disadvantages:

  1. Complex, costly equipment: both the SSB transmitter and receiver need extra circuitry (balanced modulators, sideband filters, carrier reinsertion oscillators) compared with simple AM.
  2. Carrier reinsertion and synchronization: the receiver must reinsert a locally generated carrier of exactly the right frequency and phase; any error causes distortion. …
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