FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E7F05

From subelement E7 - E7F

E7F05
Answer: B

How frequently must an analog signal be sampled to be accurately reproduced?

AAt least half the rate of the highest frequency component of the signal
BAt least twice the rate of the highest frequency component of the signal
CAt the same rate as the highest frequency component of the signal
DAt four times the rate of the highest frequency component of the signal