In a long-distance RF link, what statement about Fade Margin is true?

Question

Options

• AFade Margin is an additional pad of signal strength designed into the RF system to compensate
• BThe Fade Margin of a long-distance radio link should be equivalent to the receiver's antenna gain.
• CA Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnel
• DThe Fade Margin is a measurement of signal loss through free space, and is a function of

• A
  75% (49)
• B
  12% (8)
• C
  5% (3)
• D
  8% (5)

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