Question: A wireless receiver with an effective diameter of 250 cm is receiving signals at 20 GHz from a transmitter that transmits at a power of

A wireless receiver with an effective diameter of 250 cm is receiving signals at 20 GHz from a transmitter that transmits at a power of 30 mW and a gain of 30 dB.
(a) What is the gain of the receiver antenna?

(b) What is the received power if the receiver is 5 km away from the transmitter?

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