Home › Communication Systems › For cascaded stages, Friis’ formula shows that the overall receiver noise performance is strongly influenced by?

MCQ Practice Question

Communication Systems Noise in Communication Systems

For cascaded stages, Friis’ formula shows that the overall receiver noise performance is strongly influenced by?

AThe noise factor and gain of the first stage
BOnly the last-stage output power
CAntenna color
DAudio-frequency volume setting

Show AnswerHide AnswerReport an error

Correct Answer: A. The noise factor and gain of the first stage

Explanation: In Friis' cascade formula, noise contributions of later stages are divided by preceding gains, making a low-noise high-gain first stage especially important.

Reference: Standard communication systems: Friis formula

Continue practicing: Communication Systems MCQs or browse all MCQs.