IndiaBIX

Electronics and Communication Engineering - Satellite Communication

Exercise : Satellite Communication - Section 1
16.
Of the four INSAT-I satellites planned by India so for, only __________ has proved to be successful.
INSAT-IA
INSAT-IB
INSAT-IC
INSAT-ID
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Radio broadcasting is a familiar example of
space multiplexing
time multiplexing
frequency multiplexing
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
As compared to 17.34° antenna, the total increase in the signal relayed by 4.5° antenna of INTELSAT-IV is
14.85
220
78
3.85
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which one of the following statements regarding DSI is wrong?
It is a digital form of TASI
Though it is more efficient than TASI, it is much slower
A speaker has to wait (it at all) for only a few milliseconds for reallocation of channel
It has increased the capacity of satellite channels by a factor of 2.2 or more with out degrading speech quality
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Which one of the following statements regarding compandor is FALSE?
It compresses the higher-amplitude parts of a signal before modulation and expands them back to normal again after demodulation.
It gives preferential treatment to the weaker parts of the signal
For weaker signals it gives a poor ratio of signal strength to quantizing error
Weaker signals, traverse more quantum steps than they would do otherwise and so quantizing error is reduced.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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