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G4B07:What signals are used to conduct a two-tone test?

G4B07G4B

What signals are used to conduct a two-tone test?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G4B07 is Two non-harmonically related audio signals.

The key fact is Two non-harmonically related audio signals. 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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