Digital Communication Questions and Answers
Q1.
Which determines the error performance in TCM?
Answer :
Free distance
Q2.
In MFSK, R/W
Answer :
Decreases with increase in M
Q3.
In which technique spot beam antennas are used to point the radio signals in different directions?
Answer :
Space division
Q4.
The super group is made up of
Answer :
Five groups & Sixty channels
Q5.
The bandwidth efficiency increases as M increases.
Answer :
False
Q6.
Which modulation scheme uses nonlinear transponders?
Answer :
MSK & Offset QPSK
Q7.
Which technique can be used for bandwidth reduction?
Answer :
MPSK
Q8.
PLL designs have
Answer :
Second order loop
Q9.
Which method is more accurate?
Answer :
Closed loop synchronizer
Q10.
In phase lock which parameter is synchronized
Answer :
Frequency & Phase
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