FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E1D02

From subelement E1 - E1D

E1D02
Answer: B

Which of the following may transmit encrypted messages?

ATelecommand signals to terrestrial repeaters
BTelecommand signals from a space telecommand station
CAuxiliary relay links carrying repeater audio
DMesh network backbone nodes