The loss in a cable is usually defined in decibels per kilometer (dB/km). If the signal at the beginning of a cable with -0.3 dB /km has a power of 2 mW, what is the power of the signal at 5 km?
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![A loss of 3 dB (-3 dB) is equivalent to losing one-half the power.
Еxample 6
The loss in a cable is usually defined in decibels per kilometer (dB/km). If the signal at the
beginning of a cable with -0.3 dB /km has a power of 2 mW, what is the power of the signal at 5
km?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F81a17bc9-ee49-406c-9b67-d84180f4109a%2F7328b238-39ce-47a3-939e-6a4664ff6a45%2Fqqnsio2h_processed.jpeg&w=3840&q=75)
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