Download PTU B.Tech 2020 March ECE 4th Sem BTEC 401 Analog Communication Systems Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech ECE (Electronics And Communications Engineering) 2020 March 4th Sem BTEC 401 Analog Communication Systems Previous Question Paper

1 | M-57593 (S2)-1656
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ECE) (2012 to 2017)/(Electronics & Telecomm. Engg.)
(Sem.?4)
ANALOG COMMUNICATION SYSTEMS
Subject Code : BTEC-401
M.Code : 57593
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a) Discuss the in analog communication system with neat diagram.
b) Define noise and noise factor.
c) Discuss tracking and alignment in AM reception.
d) Discuss the AM receiver using phase locked loop.
e) What do you mean by balanced modulator?
f) What is selectivity in AM reception?
g) Define modulation and demodulation.
h) Discuss square law modulation.
i) What do you mean by SSB system?
j) Discuss the concept of pulse position modulation.

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1 | M-57593 (S2)-1656
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ECE) (2012 to 2017)/(Electronics & Telecomm. Engg.)
(Sem.?4)
ANALOG COMMUNICATION SYSTEMS
Subject Code : BTEC-401
M.Code : 57593
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a) Discuss the in analog communication system with neat diagram.
b) Define noise and noise factor.
c) Discuss tracking and alignment in AM reception.
d) Discuss the AM receiver using phase locked loop.
e) What do you mean by balanced modulator?
f) What is selectivity in AM reception?
g) Define modulation and demodulation.
h) Discuss square law modulation.
i) What do you mean by SSB system?
j) Discuss the concept of pulse position modulation.

2 | M-57593 (S2)-1656
SECTION-B
2. Explain how the phase modulation obtained from the frequency modulation.
3. Give a fair Comparison between AM and FM.
4. Write a short note on receiver parameters.
5. Discuss the frequency modulator with diagram.
6. Explain the AM receiver characteristics.

SECTION-C
7. Discuss the generation of SSB transition with their three different methods.
8. Write a note on multiplicative mixer using dual gate MOSFET with diagram.
9. Discuss the different element of communication system with block diagram.










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