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Derive an expression for the range of transmission via space wave from a transmitting antenna of height h.
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Describe radio wave propagation via (a) Groundwave (b) Space Wave and (c) Sky Wave.
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What is the need for satellite communication? Elaborate.
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Explain the need for modulation for long distance transmission.
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Define amplitude modulation and illustrate it using diagrams (graphs)
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Define modulation index and write its expression.
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What are the advantages
and disadvantages of FM over AM?
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Explain the role of repeater in communication
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Describe the mechanism of demodulation (detection) of AM Wave using block diagram, circuit diagram and graphical representation
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What is LOS communication?
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What are the basic elements of a communication system? Explain the function of each.
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Draw the block diagram of a communication system