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Antenna & Wave PropagationLink Budget

Using FSPL(dB)=32.44+20log10(fMHz)+20log10(dkm), the free-space path loss at 100 MHz over 10 km is approximately?

  • A72.4 dB
  • B82.4 dB
  • C92.4 dB
  • D112.4 dB
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Correct Answer: C. 92.4 dB
Explanation: FSPL=32.44+40+20=92.44 dB.
Reference: Standard antenna and wave propagation: link budget
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