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Electronics and Communication Engineering - Satellite Communication

Exercise : Satellite Communication - Section 1
6.
The discussing sharing of a communication satellite by many geographically dispersed Earth station, DAMA means
Demand-Assigned Multiple Access
Decibel Attenuated Microwave Access
Digital Analog Master Antenna
Dynamically-Assigned Multiple Access
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The angle subtended by earth at geostationary communication satellite is
17.34°
51.4°
120°
60°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The INTELSAT-IV satellite launched in 1974 had two earth coverage antenna and two narrower-angle antennas subtending 4.5°. The signal from narrow-angle antenna was stronger than that from earth- coverage antenna by a factor of
17.34/4.5
17.34 x 4.5
(17.34/4.5)2
(17.34/4.5)4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A transponder is a satellite equipment which
receives a signal from Earth station and amplifies
changes the frequency of the received signal
retransmits the received signal
does all of the above-mentioned functions
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
A geosynchronous satellite
has the same period a that of the Earth
has a circular orbit
rotates in the equatorial plane
has all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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