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A frequency division multiplexing system is used to multiplex 24 independent voice signals. Single sideband modulation is used for the transmission. Each voice signal is allotted a bandwidth of 4 kHz. What is the overall transmission bandwidth of the channel ?

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  1. 4 kHz
  2. 6 kHz
  3. 24 kHz
  4. 96 kHz

Answer (Detailed Solution Below)

Option 4 : 96 kHz
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Detailed Solution

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Given,

Number of independent voice signals (N) = 24

Voice signal allotted bandwidth (SSB BW = Message BW = 4 kHz)

Transmission bandwidth = SSB BW × N

or, Transmission bandwidth = 4 × 24 = 96 kHz

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