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A geostationary satellite orbiting at a height 36,000km operates at 4GHz using a transmitter antenna that has a gain of 15dB. On earth the

A geostationary satellite orbiting at a height 36,000km operates at 4GHz using a transmitter antenna that has a gain of 15dB. On earth the receiver antenna has a gain of 45dB. Calculate; (a) Free space propagation loss in dB. (b) Effective aperture of the transmitter antenna. (c) Effective aperture of the receiver antenna. (d) The received power when the transmitter power is 200W. (a) 196dB, (b) 0.014m, (c) 14.2m, (d) 5pW

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