Introduction To Satellite Communication – 1 – 10

46. Which of the following is the source of energy for a satellite ?

(a) Magneto-hydro generator
(b) Battery
(c) Solar cell
(d) Fuel cell

ANSWER

EXPLANATION

47. Satellite used for intercontinental communications are known as :

(a) COMSAT
(b) MARISAT
(c) DOMSAT
(d) INTELSAT

ANSWER

EXPLANATION

48. Total band of frequencies allocated for satellite communications spread over :

(a) 100 MHz
(b) 4 GHz
(c) 6 GHz
(d) None of these

ANSWER

EXPLANATION

49. Rain attenuation and sky noise is low at :

(a) 4 GHz
(b) 6 GHz
(c) 12 GHz
(d) 14 GHz

ANSWER

EXPLANATION

50. Microwave links are preferred to coaxial cables for transmission because :

(a) They have less overall distortion
(b) They have greater bandwidths
(c) Of their relative immunity to impulse noise
(d) They are cheaper

ANSWER

EXPLANATION

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