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Q2] Solve any four out of six: (5 Marks Each)
A) Explain design consideration of Earth Station.
B) Define and explain reliability in satellite.
C) Explain why 14/12GHz band is use for DTH application, What are the advantages and disadvantages of this band ?
D) Define and explain what is meant by frame efficiency in relation to TMDA operation.
E) Explain Kepler's laws.
F) How does back off power affect satellite link performance ?
Q3] Solve any two questions out of three: (10 Marks Each)
A) Explain the various stages in launching of a geostationary satellite into final circular orbit with zero inclination by ELV.
B) Explain in detail the operation of the SPADE system of demand assignment. What is the function of common signaling channels ?
C) A receiver for geostationary satellite transmission at 2.2GHz has anequivalent noise temperature of 160K and a bandwidth of 1MHz. The receiver antenna has a gain of 30dB, and the antenna noise temperature is 190dB. What is the minimum required satellite transmitter power to achieve a 20dB CNR at the output of the receiver ?
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