STUPIDSID
1(a)
Explain briefly about various satellite communication services.
6 M
1(b)
State and explain the Kepler's law of planetary motion with neat diagram necessary equations.
10 M
1(c)
Explain frequency band allocations as per ITU.
4 M
2(a)
What are the orbit perturbations that take place because of non spherical nature of earth?
10 M
2(b)
Explain in detail the earth eclipse of satellite and sun transit outage.
6 M
2(c)
What is side real time?
4 M
3(a)
Explain what is meant by EIRP? A satellite down link at 12GHz operates with a transmit power of 6W and an antenna gain 48.2 db calculate the EIRP in dbW.
6 M
3(b)
Calculate horizontal, vertical and circular polarizations for a frequency of 12GHz. The rain attenuation is exceeded for 0.01% of the time in any year, for a point rain rate of 10mm/hr. The earth station attitude is 600 meters and the antenna elevation angle is 60°. The rain height is 3km and an = 0.0188 bn = 1.217 av = 0.168 bv = 1.2.
10 M
3(c)
List four different transmission losses in a satellite link.
4 M
4(a)
What is a satellite transponder? With a neat block diagram explain the overall frequency arrangement of typical C band communication satellite.
10 M
4(b)
What are different types of satellite antennas? Explain briefly all of them.
6 M
4(c)
What are the major sub systems of a communication satellite? Explain its functions.
4 M
5(a)
What is master antenna TV system? With the hap of a diagram describe an arrangement for MATV system.
10 M
5(b)
With a neat block diagram. Explain outdoor and the indoor unit for analog FM/TV.
10 M
6(a)
Describe briefly the modes of interference that can occur in satellite communication system. Distinguish between satellite and terrestrial mode of interference.
10 M
6(b)
The carrier to interference ratio at the ground receiving antenna is 23.3db. For the uplink [C/I] ratio is 27.53db. Find the overall ratio [C/I]ant for [I/C]U = 0.001766 and [I/C]D = 0.004436.
6 M
6(c)
Explain briefly different types of satellite access?
4 M
7(a)
Give the applications of Radarsat. Explain a "Dawn to Dusk" orbit.
8 M
7(b)
Explain frequency and polarization of direct broadcast satellite service.
8 M
7(c)
Explain bit rates of digital television.
4 M
8(a)
Calculate the bit rates that can be carried in the 24MHz channels using QPSK, allowing a roll of factor of 0.2.
6 M
8(b)
Describe the main features iridium system in detail with diagram and application.
10 M
8(c)
What are the applications of VSAT?
4 M
More question papers from Satellite Communication