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G8A10:What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?

G8A10G8A

What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G8A10 is Signal distortion caused by excessive drive or speech levels.

The key fact is Signal distortion caused by excessive drive or speech levels. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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