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16 April, 00:11

In a TDM communication example, 15 voice signals are badlimited to 5kHz and transmitted simultaneously using PAM. What is a preliminary estimate for the required system bandwidth?

(a) 10 kHz

(b) 75 kHz

(c) 80 kHz

(d) 160 kHz

(e) None of the above.

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Answers (1)
  1. 16 April, 01:00
    0
    Option D

    160 kHz

    Explanation:

    Since we must use at least one synchronization bit, total message signal is 15+1=16

    The minimum sampling frequency, fs=2fm=2 (5) = 10 kHz

    Bandwith, BW required is given by

    BW=Nfs=16 (10) = 160 kHz
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Home » Engineering » In a TDM communication example, 15 voice signals are badlimited to 5kHz and transmitted simultaneously using PAM. What is a preliminary estimate for the required system bandwidth? (a) 10 kHz (b) 75 kHz (c) 80 kHz (d) 160 kHz (e) None of the above.
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