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The factor by which a receiver fails to reach the theoretical internal noise limit is known as ________

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The factor by which a receiver fails to reach the theoretical internal noise limit is known as ________

(a) Noise factor

(b) Noise

(c) Coefficient of noise

(d) Noise figure

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Asked question is from Radio Propagation and Noise Characteristics in section Terrestrial Radio Navigation System of Avionics

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The correct answer is (d) Noise figure

For explanation: The factor by which a receiver fails to reach the theoretical internal noise limit is often expressed as a ratio, in decibels, and is known as the noise figure. It can also be described as the ratio between the noise power output of a practical receiver and the noise power output of an ideal receiver.

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