FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E4D12

From subelement E4 - E4D

E4D12
Answer: C

What is the link margin in a system with a transmit power level of 10 W (+40 dBm), a system antenna gain of 10 dBi, a cable loss of 3 dB, a path loss of 136 dB, a receiver minimum discernable signal of -103 dBm, and a required signal-to-noise ratio of 6 dB?

A-8dB
B-14dB
C+8dB
D+14dB