Introduction To Satellite Communication – 1 – 7

31. In amplitude modulation the upper and lower side are mirror images of each other and hence contain ….. Information.

(a) Same
(b) Less
(c) More
(d) Any of the above

ANSWER

EXPLANATION

32. In amplitude modulation the upper and lower side are mirror images of each other and hence contain ….. Information.

(a) Same
(b) Less
(c) More
(d) Any of the above

ANSWER

EXPLANATION

33. Very heavy rain cause …….. noise at earth stations than all other noise sources combined together.

(a) Less
(b) More
(c) Either of the above
(d) None of the above

ANSWER

EXPLANATION

34. When a communication satellite passes into earth’s shadow, its temperature drops to about :

(a) 123 K
(b) 223 K
(c) 273 K
(d) 373 K

ANSWER

EXPLANATION

35. In time-division multiplexing ……….. signals, occupies/occupy the channel at one instant.

(a) Only one
(b) Two
(c) Three
(d) None of the above

ANSWER

EXPLANATION

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