Exercise: Satellite Communication

Questions for: Satellite Communication

India's first three-axis stabilised geostationary communication satellite is
A:
Rohini
B:
Aryabhatta
C:
Apple
D:
Bhaskara
Answer: C
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Shannon's Law relates
A:
antenna gain to frequency
B:
noise power to bandwidth
C:
information-carrying capacity to S/N ratio
D:
transmission losses to noise
Answer: B
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In envelope detection of an AM waveform
A:
One side band and full-ampiitude carrier are needed
B:
Both side bands and full-amplitude carrier are needed
C:
Only two side bands are needed
D:
Upper side band and part of carrier are needed
Answer: B
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When a communication satellite passes into Earth's shadow, its temperature drops to about __________ ° K.
A:
273
B:
243
C:
170
D:
123
Answer: D
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The different access methods which permit many satellite users to operate in parallel through a single transponder without interfering with each other as
A:
Frequency Division Multiple Access (FDMA)
B:
Time Division Multiple Access (TDMA)
C:
Code Division Multiple Access (CDMA)
D:
All of the above
Answer: D
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