IndiaBIX

Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 19
6.
In a certain '12 channel TDM' system it is found that channel no. 3 and channel no. 8 are connected to the same input signal. This technique
wastes the channel capacity
takes care of different sampling rate
is required when different bandwidth signals are to be transmitted
reduces noise
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Which wave is also called surface wave?
Ground wave
Sky wave
Space wave
Both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
ADM stands for
Angle Delta Modulation
Angle Digital Modulation
Adaptive Delta Modulation
Adaptive Digital Modulation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The atmospheric absorption of radio waves depends on
frequency of wave
the distance from transmitter
wave polarisation
atmospheric polarisation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Efficiency of general AM signal with em = E1 cos ω1t + E2 cos ω2 tj ec = Ec cos ωct; E1 cos ω1t with modulation index m2 is __________ .
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers