Question: A space probe is launched to explore the moon (~ 384,000 km from Earth). The space probe is equipped with a microwave source (transmit

A space probe is launched to explore the moon (~ 384,000 km from Earth). The space probe is equipped with a

A space probe is launched to explore the moon (~ 384,000 km from Earth). The space probe is equipped with a microwave source (transmit power 20 W) and a directional antenna (20 dB gain). A dish antenna (Earth station) operating at 3 GHz is deployed to monitor the signal coming from the probe. If an Earth dish of 50 dB gain is adopted (100% illumination efficiency and zero atmospheric loss are assumed), determine the dish size (diameter) and the maximum amount of received power (expressed in dBm) of the Earth dish. =

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