Q67,p3,j14. 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.

(A) 30,000

(B) 32,700

(C) 33,000

(D) None of the above

Answer B

Explanation

CH1-gb-ch2-gb-ch3-gb-ch4-gb-ch5-gb-ch6-gb-ch7-gb-ch8-gb-ch9-gb-ch10.

9 guard band occupies 2700 hz.

10 channels occupies 30000 hz.

So total  bandwidth is 32700.