Question 1 : Antenna's efficiency is given by the ratio of
1. Effective aperture to physical aperture
2. Physical aperture to effective aperture
3. Signal power to noise power
4. Losses
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Question 2 : The link availability measures the percentage of time the link can be ______
1. Open
2. Closed
3. Used
4. None of the mentioned
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Question 3 : Field of view is ______ to antenna gain.
1. Proportional
2. Inversely proportional
3. Half the
4. Double
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Question 4 : Link budget consists of calculation of
1. Useful signal power
2. Interfering noise power
3. Useful signal & Interfering noise power
4. None of the mentioned
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Question 5 : Atmospheric window region is used for
1. Satellite communication
2. Deep-space communication
3. Satellite & Deep-space communication
4. None of the mentioned
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Question 6 : AM-to-PM conversion brings about
1. Amplitude variation
2. Phase variation
3. Frequency variation
4. None of the mentioned
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Question 7 : In which repeaters uplink is decoupled from the downlink?
1. Regenerative
2. Non regenerative
3. Regenerative & Non regenerative
4. None of the mentioned
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Question 8 : Noise figure measures the
1. Power degradation
2. Noise degradation
3. SNR degradation
4. None of the mentioned
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Question 9 : Thermal noise is generated due to
1. Lossy coupling
2. Lossless coupling
3. Lossy & Lossless coupling
4. None of the mentioned
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Question 10 : What are the functions of non-regenerative repeaters?
1. Amplifies
2. Re transmits
3. Amplifies & Re transmits
4. None of the mentioned
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