Satellite Communication MCQ Questions & Answers

Satellite Communication MCQ Questions & Answers | ECE

Learn Satellite Communication MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Satellite Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-2 section-3

Range resolution of a Linear Frequency Modulated pulse compression radar depends on which of the following factors:

A) Radiated power B) Antenna size C) Center frequency of the radar D) Bandwidth of the transmitted pulse

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Answer & Solution

Answer: Option D

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In satellite communication, Faraday rotation is caused by

A) Plasma frequency B) Earth's magnetic field C) Non-Gaussian nature of uplink noise when received in the downlink channel D) Ionospheric reflections that occur multiple times

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Answer & Solution

Answer: Option B

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The usable bandwidth of a microwave because transponder for 6/4 satellite communication is generally

A) 360 MHz B) 40 MHz C) 36 MHz D) 1 MHz

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Answer & Solution

Answer: Option C

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The maximum range of a monostatic Radar is R. If a target having a Radar cross-section of 10 m² exists at R/2, what should be the target cross-section at 3R/2 to result in an equal signal strength at the Radar?

A) 90 m² B) 270 W/m² C) 810 m² D) 30 W/m²

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Answer & Solution

Answer: Option C

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An FM-CW (Frequency Modulated - Continuous Wave) Radar is essentially

A) Bistatic B) Monostatic C) Can operate either as monostatic or as bistatic D) None of the above

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Answer & Solution

Answer: Option C

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Which of the following statements on communication by geosynchronous satellites are correct?
1. The propagation loss over each direction (uplink are downlink) is about 200 dB at 5 GHz.
2. Radius of the geosynchronous orbit is 42250 km.
3. An arc of about 17° must be covered by the satellite antenna in the equatorial plane.
4. The polar regions are well covered by the satellite antenna.
Select the correct answer using the options given below:

A) 1, 2 and 4 B) 2 and 3 C) 1 and 4 D) 1, 2 and 3

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Answer & Solution

Answer: Option D

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