FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E2E03

From subelement E2 - E2E

E2E03
Answer: B

To what does the "4" in FT4 refer?

AMultiples of 4 bits of user information
BFour-tone continuous-phase frequency shift keying
CFour transmit/receive cycles per minute
DAll these choices are correct