7/26/2019 SC GT

1/1

SATELLITE COMMUNICATIONS GRAND TEST

Dt: 28-03-2016

1. a) Explain demand access multiple access (DAMA).

b) Explain FDMA of a Satellite with one example.

2. a) Explain in detail about tracking system in earth station.

b) Explain about design of large antennas.

3. a)Write short notes on antenna used for satellite communication

b) Explain about: i) Elliptical orbits.

ii) Molniya orbits.

iii) Equatorial.

iv) Inclined orbits.

4. a) Explain the differential GPS

b) Explain the position location in GPS.

5. a) Explain the spread spectrum transmission and reception

b) Discuss the synchronization in TDMA networks

6. a) What are the different types of antenna mounts?

b) Explain about: (i) Rectangular apertures.

(ii) Circular apertures.

7. a) Explain the delay and through put consideration in satellite systems

b) Explain the terminal characteristics and common requirements of NGOSS

8. a) What are the major sources of error in a GPS receiver

b) Explain about GPS C/A code accuracy