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Ten signals, each requiring $3000$ Hz, are multiplexed on to a single channel using FDM. How much minimum bandwidth is required for the multiplexed channel ? Assume that the guard bands are $300$ Hz wide.

  1. $30,000$
  2. $32,700$
  3. $33,000$
  4. None of the above 
in Computer Networks by Boss (30.1k points)
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1 Answer

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Ten signals need 10x3000 =30000 Hz

9 (10-1) Guard bands (or gaps) needs =300x9 =2700 Kz

so minimum bandwidth need 30000+2700= 32700Hz

ans is B
by Boss (48.8k points)
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or they have copied from here . pls check date
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