Introduction to Satellite Communication – 1 – 1

1. An active satellite carriers :

(a) Antenna system
(b) Transmitter
(c) Receiver
(d) All of the above

ANSWER

EXPLANATION

2. A passive satellite :

(a) Amplifier the signal
(b) Reflects the signal
(c) Absorbs the signal
(d) None of above

ANSWER

EXPLANATION

3. Marisat Satellites are used for :

(a) TV transmission
(b) Weather forecasts
(c) Ship to share communication
(d) Satellite to satellite communication

ANSWER

EXPLANATION

4. If the maximum value of electron density is 1.24 x 106 cm^-3 the critical frequency for reflection at vertical incidence will be nearly :

(a) 1 MHz
(b) 5 MHz
(c)  7.5 MHz
(d) 5 MHz

ANSWER

EXPLANATION

5. An active satellite has :

(a) Antenna system
(b) Antenna system transmitter and receiver
(c) Antenna system, transmitter, receiver and power supply
(d) only metallic baloon

ANSWER

EXPLANATION

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