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Digital Communications – 1 – 1

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1. In Pulse transmitter the ratio of time on to time off is called :

(a) Efficiency
(b) Duty cycle
(c) Base
(d) Bandwidth

Answer

Answer : (b)

Explanation

No answer description available for this question. Let us discuss .

2. PCM transmission requires _______ Bandwidth than Amplitude transmission.

(a) More
(b) Less
(c) Same
(d) Negligible

Answer

Answer : (a)

Explanation

No answer description available for this question. Let us discuss .

3. Which one of the following communication system is digital ?

(a) FM
(b) AM
(c) PCM
(d) PAM

Answer

Answer : (c)

Explanation

No answer description available for this question. Let us discuss .

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