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Which is the maximum distance at which you might expect solid VHF contact over flat terrain at flight level 50?
  • A
    About 150 NM.
  • B
    About 8 NM.
  • C
    About 85 NM.
  • D
    About 15 NM.
The maximum distance at which one may expect solid VHF contact:

R = 1.23 x (√H + √h)
Where:

  • R is the range [NM]
  • H is the height over terrain [ft]
  • h is the elevation of the station]
R = 1.23 x √5 000 = 87 NM

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