IndiaBIX

Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 20
46.
Which of the following is correct (FDM means Frequency Division Multiplexing and TDM means Time Division Multiplexing)?
FDM requires lower bandwidth but TDM has more noise immunity
FDM has more noise immunity and requires lower bandwidth than TDM
FDM requires channel synchronization while TDM has more noise immunity
FDM requires more multiplexing while TDM requires band pass filter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Consider the following applications/ advantages of radar beacons
  1. navigation
  2. target identification
  3. accurate tracking of enemy targets
  4. large increase in maximum range
Which of the above are correct?
1, 2, 3, 4
1, 2, 4
1, 2
2, 3, 4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The signal plate of vidicon tube is coated with tin oxide.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
The maximum permissible distance between two samples of a 10 kHz signal
100 μ sec
50 μ sec
10 μ sec
none
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
In telephone systems, load is expressed in the unit of
erlangs
decibels
bells
watts
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers