Question Paper: Priniciples of Communication Engineering Question Paper - May 18 - Electronics And Telecomm (Semester 4) - Mumbai University (MU)
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Priniciples of Communication Engineering - May 18

Electronics And Telecomm (Semester 4)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

Q1 Solve the following

a) Distinguish between narrowband and wideband FM.
(4 marks) 00

b) What is companding?
(4 marks) 00

c) Why AGC is required in radio receivers?
(4 marks) 00

d) Explain aliasing error and aperature effect.
(4 marks) 00

e) Explain various types of noise affecting communication system.
(4 marks) 00

Q2

a) What are the drawbacks of delta mdulation? Explain adaptive delta modulation in detail.
(10 marks) 00

b) What is signal multiplexing? Explain TDM and FDM in detail.
(10 marks) 00

Q3

a) State and proove sampling theorem for low pass bandlimited signals.
(10 marks) 00

b) Explain practicle diode detector with suitable example.
(10 marks) 00

Q4

a) What are the differences methods of FM generation? Explain reactance modulator in detail.
(10 marks) 00

b) Explain how PPM is generated from PWM
(10 marks) 00

Q5

a) Explain superheterodyne receiver
(10 marks) 00

b) Explain VSB transmission.
(10 marks) 00

Q6 Write note on (any four)

a) Quadrature amplitude modulation
(5 marks) 00

b) Amplitude limiting and thresholding.
(5 marks) 00

c) Double spotting
(5 marks) 00

d) Low level and high level modulation
(5 marks) 00

e) PCM and DPCM
(5 marks) 00

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written 5 days ago by gravatar for Mayank Aggarwal Mayank Aggarwal0
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