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Antenna & Wave PropagationFresnel Zone

The first Fresnel zone is important in a point-to-point radio link because excessive obstruction within it can cause?

  • AAdditional diffraction loss
  • BAutomatic gain increase
  • CZero path loss
  • DPerfect impedance matching
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Correct Answer: A. Additional diffraction loss
Explanation: Keeping much of the first Fresnel zone clear helps minimize diffraction loss and destructive interference.
Reference: Standard antenna and wave propagation: fresnel zone
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