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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 13
21.
The sampling frequency in CD is 10 kHz.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Vestigial sideband is most commonly used in
radio transmission
television transmission
telephony
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
An image uses 512 x 512 picture elements. Each element can take any of eight distinguishable levels. The maximum entropy in the above image will be
2097152 bits
786432 bits
648 bits
144 bits
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The subcarrier frequency for transmission of colour difference signals in TV systems in India is
9.47 MHz
4.43 MHz
2.06 MHZ
1.3 MHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A helical antenna is used for satellite tracking due to its
good front to back ratio
broad bandwidth
circular polarization
both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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