Question: A 2 0 km microwave link that operates at 2 . 2 GHz has a transmitter power of 1 watt. The receiving and the transmitting

A 20 km microwave link that operates at 2.2 GHz has a transmitter power of 1 watt. The receiving and the transmitting antenna gains are both 20dBD. The receiver needs a signal of at least 120 dB below the transmitter level to demodulate the information. Assume no other losses.

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