Manonmaniam Sundaranar University (MSU) 2010 B.Sc Electronics Manonmanium Sundaranar University - Question Paper

CodeNo. 1342 Sub. Code: 3EL62
B.Sc. DEGREE EXAMINATION, APRIL 2010
ELECTRONICS
Sixth Semester
SATELLITE COMMUNICATION
(For those who joined in July 2006 and 2007)
Time: three Hours Max. Marks: 100
part - A (10 x one = 10 Marks)
ans ALL the ques. select the accurate ans
1. According to Kepler's legal regulations the path followed by the satellite around the primary will be an
(b) Ellipse (d) Square
(a) Circular (c) Triangle
2. The point farthest to the earth is _
(a) Perigee (b) apogee
(c) centre (d) equator
3. The occurance and duration of the sun transit outage depends on the __.
(a) altitude of the earth station
(b) latitude of the earth station
(c) equator of the earth station
(d) none of the above
4. __ legal regulations may be used to obtain the needed altitude of the geostationary orbit above the equator.
(a) Keplers I legal regulations (b) Keplers II legal regulations (c) Keplers III legal regulations (d) None of the above
5. Total weight of the space craft is _
(a) 1009 kg (b) 1000 kg
(c) 100 kg (d) 2000 kg
6. FDMA stands for __
(a) Frequency Divided Media Access
(b) Frequency Division Multiple Access
(c) Frame Division Multiple Access
(d) None of the above
7. f =
(a)f=k x r (b)f=r x k
(C)f=K + r (d)f=k-r

8. MATV stands for __
(a) mega antenna TV
(b) master antenna TV
(c) middle antenna TV
(d) none of the above
9. GSM stands for
(a) Global Short Message
(b) Global System for mobile Communication
(c) Great Service Message
(d) None of the above
10. VSAT stands for
(a) Very Small Aperture Terminal
(b) Very Small Altitude Terminal
(c) Very Short Aperture Terminal
(d) None of the above
part - B (5 x six = 30 Marks)
ans ALL the ques. choosing either (a) or (b)
11. (a) State the Keplers legal regulations
(or)
(b) State Newtons legal regulations.
12. (a) discuss the orbital parameters.
(or)
(b) discuss the limits of visibility. .
13. (a) discuss the space craft configuration.
(or)
(b) Write about the noise temperature.
14. (a) Write about Analog and Digital transmission.
(or)
(b) discuss the transmitters in detail.
15. (a) Write about GSM. (or)
(b) Write about GPS.
part - C (5 x 12 = 60 Marks)
ans ALL the ques. choosing either (a) or (b)
16. (a) discuss the Geostationary and Non-geostationary orbits.
(or)
(b) Explain:
(i) Frequency allocation (ii) Sun transit outages
17. (a) Write about polarization in detail,
(or)
(b) Explain:
(i) Noise temperature (ii) System Noise
18. (a) Write about FDMA in detail.
(or)
(b) Write about CDMA in detail.

19. (a) discuss EIRP and derive its expression.
(or)
(b) Write about antenna gain.
20. (a) Write about GEO, MEO and LEO.
(or)
(b) discuss the concept of satellite Navigation Systems.

Earning:   Approval pending.