FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E8A10

From subelement E8 - E8A

E8A10
Answer: C

What is the purpose of a low-pass filter used at the output of a digital-to-analog converter?

ALower the input bandwidth to increase the effective resolution
BImprove accuracy by removing out-of-sequence codes from the input
CRemove spurious sampling artifacts from the output signal
DAll these choices are correct