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What is the signal-to-noise ratio

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Reference no: EM13332270

a) Describe the attenuation problem and why it is important.

b) A signal is transmitted at 50 mW. When it reaches the receiver, its strength is 5 mW. On a percentage basis, how strong is the final signal relative to the initial signal?

c) By what percentage has the signal declined in strength?

d) Describe the noise problem.

e) What is the signal-to-noise ratio, and why is it important?

f) As a signal propagates down a UTP cord, the noise level is constant. Will greater propagation distance result in fewer noise errors, the same number of noise errors, or more noise errors? Explain.

g) Does noise cause errors when the signal strength falls to the noise floor or below it? Explain.

Reference no: EM13332270

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