73.
In a satellite communication, the uplink power level is generally high and power level of the received down link signal is low because:
1. High signal attenuation due to free-space loss
2. Limited available down link power
3. Finite satellite down link antenna gain, which is dictated by the required coverage area

74.
A satellite link has same carrier to noise ratio in uplink as well as in downlink. Overall carrier to noise ratio will be-

77.
A geostationary satellite

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