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'Wun too tree dayseemal fife' represents which of the folllowing frequncies?

  • A

    123.500 MHz

  • B

    Either 123.57 or 123.575 MHz

  • C

    12.357 MHz

  • D

    123.575 MHz

'Wun too tree dayseemal fife'...

  • Wun = 1
  • Too = 2
  • Tree = 3
  • Dayseemal = Decimal
  • Fife = 5

So, 123.5 MHz. Using individual numbers allows for clarity and better understanding over the radio.

ICAO Annex 10 Volume 2: 5.2.1.4.3.1

When the language used for communication is English, numbers shall be transmitted using the following pronunciation:

Numeral or numeral element Pronunciation

  • 0 = ZE-RO
  • 1 = WUN
  • 2 = TOO
  • 3 = TREE
  • 4 = FOW-er
  • 5 = FIFE
  • 6 = SIX
  • 7 = SEV-en
  • 8 = AIT
  • 9 = NIN-er
  • Decimal = DAY-SEE-MAL
  • Hundred = HUN-dred
  • Thousand = TOU-SAND

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