FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E8B03

From subelement E8 - E8B

E8B03
Answer: A

What is the modulation index of an FM phone signal having a maximum frequency deviation of 3000 Hz either side of the carrier frequency if the highest modulating frequency is 1000 Hz?

A3
B0.3
C6
D0.6