FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E8C13

From subelement E8 - E8C

E8C13
Answer: B

What is described by the constellation diagram of a QAM or QPSK signal?

AHow many carriers may be present at the same time
BThe possible phase and amplitude states for each symbol
CFrequency response of the signal stream
DThe number of bits used for error correction in the protocol