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4.A signal travels from point A to point B. At point A, the signal power is 20 W. At point B, the power is 5 W. 4.1. What is the attenuation in dB? (No score if not show solution)
4.2. What is the attenuation in dBm? (No score if not show solution)
4.3. In case attenuation of a signal is -50 dB. What is the final signal power ? (No score if not show solution)

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4.A signal travels from point A to point B. At point A, the signal power is 20 W. At point B, the po...
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