Exam Details
| Subject | Satellite And Tv Engineering | |
| Paper | ||
| Exam / Course | BTCVI / BTECVI / BTELVI | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
Write down the advantages of Digital satellite communication systems. Why is synchronization required in TDMA system? A geostationary satellite carries a transponder with a 20 Watt transmitter at 4 GHz. The transmitter is operated at an output power of 10 Watts and drives an antenna with a gain of 30 dB. An Earth station is at the centre of the coverage zone of the satellite, at a range of 38,600 km. Using decibels for all calculations, find the flux density at the Earth station in dBW/m^ and
(ii) the power received by an antenna with a gain of 39 dB in dBW.
2.(a) Draw and explain the functional block diagram of an Earth station transmitter.
(b) Explain the different types of demand assignments in satellite communication systems.
3.(a) Calculate the path loss in dB for a 2000 km path at 1·6 GHz, 2·5 GHz and 29 GHz operating frequencies. Describe the various types of scanning in a television system.
4. Explain how attenuation and cross-polarization interference is induced by rain in satellite communication systems.
5.(a) Describe carrier recovery circuit with a single tuned circuit having AFC. Draw and explain the block diagram of Phase-Lock Loop (PLL).
6.(a) Justify the choice of 625 lines for TV transmission. Why is the total number of lines kept odd in all television systems? Explain the following colour television terms:
Hue
(ii) Saturation
7.(a) Discuss how a vidicon camera tube develops the video signal. What is the basic principle of a camera tube? Explain the precautions to be taken in TV picture tubes.
8.(a) Why is vestigial side-band required for picture transmission in TV systems? Explain the use of pre-emphasis in transmitter and de-emphasis in receiver systems.
9. Draw and explain the block diagram of a digital TV receiver. What are the advantages of NTSC over a SECAM system?
10. Write short notes on any two of the following: IF Demodulation Concept of Plasma Screen HDTV Timing Recovery Circuit
(ii) the power received by an antenna with a gain of 39 dB in dBW.
2.(a) Draw and explain the functional block diagram of an Earth station transmitter.
(b) Explain the different types of demand assignments in satellite communication systems.
3.(a) Calculate the path loss in dB for a 2000 km path at 1·6 GHz, 2·5 GHz and 29 GHz operating frequencies. Describe the various types of scanning in a television system.
4. Explain how attenuation and cross-polarization interference is induced by rain in satellite communication systems.
5.(a) Describe carrier recovery circuit with a single tuned circuit having AFC. Draw and explain the block diagram of Phase-Lock Loop (PLL).
6.(a) Justify the choice of 625 lines for TV transmission. Why is the total number of lines kept odd in all television systems? Explain the following colour television terms:
Hue
(ii) Saturation
7.(a) Discuss how a vidicon camera tube develops the video signal. What is the basic principle of a camera tube? Explain the precautions to be taken in TV picture tubes.
8.(a) Why is vestigial side-band required for picture transmission in TV systems? Explain the use of pre-emphasis in transmitter and de-emphasis in receiver systems.
9. Draw and explain the block diagram of a digital TV receiver. What are the advantages of NTSC over a SECAM system?
10. Write short notes on any two of the following: IF Demodulation Concept of Plasma Screen HDTV Timing Recovery Circuit
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
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- School of Education (SOE)
- School of Engineering & Technology (SOET)
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Subjects
- Advance Microprocessor And Architecture
- Analog and Mixed Mode VLSI Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas and Propagation
- B10-Informatics
- Basics Of Electronics Engineering
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Device Modelling For Circuit Simulation
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Electromagnetic Field Theory
- Electronic Measurement and Inst
- Electronic Switching Circuits
- Embedded System Design
- Information Theory And Coding
- Linear Integrated Circuits
- Microcontrollers
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Multirate Systems
- Optical Fiber Communication
- Power Electronics
- Satellite And Tv Engineering
- Signal And Systems
- Wireless Communication