Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 1 (Q.No. 4)
4.
VSB modulation is preferred in TV because
it reduces the bandwidth requirement to half
it avoids phase distortion at low frequencies
it results in better reception
none of the above
Answer: Option
Explanation:

VSB (vestigial side band) transmission transmits one side band fully and the other side band partially thus, reducing the bandwidth requirement.

Discussion:
7 comments Page 1 of 1.

Kalyan said:   6 years ago
Reduction in bandwidth it is almost as efficient as the SSB.

Pradip said:   7 years ago
Option 2 is correct.
(1)

Rajkamal chauhan said:   8 years ago
I think option D]. none of the above is correct.

Akarsh agrawal said:   9 years ago
VSB doesn't reduce bandwidth requirement to half. The Option should be modified to less bandwidth as compared to DSB rather than half.
(1)

Ravi said:   9 years ago
It's not VSB it's SSB.

Pratap said:   9 years ago
Vsb is also avoided lower phase distortion because of the main purpose of design is that otherwise no difference between ssb and vsb. In vsb we need to must care about the design of the filter. Its fc at 0.5 amplitude must be otherwise phase distortion occurs at a lower frequency. Hence 2 nd option is also right. In a certain condition, 1st may be wrong because it's not exactly half. The frequency of vsb is fv+w. It's slightly greater than ssb.

Darpan said:   10 years ago
Explain India's performance the MDGs. How are the SDGs (Sustainable Development Goals) different from MDGs? What are the challenges before India in meeting the targets of SDGs.

Can anyone help me out on this question in 300 words limit?

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