DBATU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. Babasaheb Ambedkar Technological University
Firstranker's choice
DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY,
LONERE - RAIGAD -402 103
--- Content provided by FirstRanker.com ---
Mid Semester Examination - March - 2019
| Class: B. Tech (E&TC) | Sem.:- IV |
| Subject:- Analog Communication Engineering (ACE) | Marks: 20 |
| Subject code: BTEXC 402 | Time:-1 Hr. |
| Date:- 12/03/2019. |
Instructions: Assume suitable data if required.
No.1 Attempt any six of the following: (06 Marks)
- Explain Simplex and Duplex systems.
- List various modes of communication.
- State sampling theorem.
- What is modulation? Give their types.
- Define modulation Index for amplitude modulated signal.
- Define low and high power level modulation.
- What is Digital modulation? State its advantages.
- Identify the amount of power saved if carrier alone is suppressed.
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
No.2 Attempt any two of the following: (06 Marks)
- Discuss TDM technique.
- Derive an expression for instantaneous voltage for FM signal.
- Draw and explain Phase shift method for SSB generation.
--- Content provided by FirstRanker.com ---
Q.No.3 Attempt any one of the following: (08 Marks)
- A 10 KW carrier wave is amplitude modulated at 80% depth of modulation by a sinusoidal modulating signal. Calculate the side band power, total power and the transmission efficiency of the AM wave.
- Draw and explain the block diagram of ISB generation technique.
Visit FirstRanker.com for more.
--- Content provided by FirstRanker.com ---
This download link is referred from the post: DBATU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. Babasaheb Ambedkar Technological University