Q. Why are VHF, UHF, and microwave signals used in satellite communication?

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Q. What is the reason for shifting from c band to ku band in satellite communication?

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Q. Which of the following bands cannot be used for satellite communication?

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Q. What is the maximum theoretical data rate if a transponder is used for binary transmission and has a bandwidth of 36 MHz?

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Q. Why are techniques like frequency reuse and spatial isolation carried out?

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Q. Which technique uses two different antennas to reduce traffic on the same frequency?

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Q. Which technique uses spot beam antennas to divide the area covered by the satellite into smaller segments?

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Q. Spatial-division multiple access (SDMA) depends on satellite location and not frequency.

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Q. Which of the following is not a satellite subsystem?

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Q. Which of the following is not a part of the propulsion subsystem of a satellite?

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Q. Which of the following are common baseband signals transmitted from the earth ground station?

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Q. Which of the following components receives, translates the signal frequency and re-transmits the signal in a satellite?

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Q. Why is there a huge spectrum space between the transmitted and received signal in satellite communication?

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Q. Which of the following transponders convert the uplink signal to downlink signal using two mixers

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Q. In a regenerative transponder, the signal is demodulated and modulated again before transmission.

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Q. What is the number of transponders if the satellite uses 12 channels of frequency and frequency reuse is implemented?

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Q. Why is it not possible to provide transmit function by wideband amplifier and mixer circuits?

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Q. Which of the following is not true?

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Q. Telemetry, command, and control (TC and C) subsystem allow a ground station to monitor and control conditions in the satellite.

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Q. What is the use of the band pass filter in the receiver section?

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