Refer to figures.
ICAO Annex 10, Volume II
5.2.1.4.1 Transmission of numbers
5.2.1.4.1.1 All numbers, except as prescribed in 5.2.1.4.1.2, shall be transmitted by pronouncing each digit separately.
runway visual range | transmitted as |
600 | RVR six hundred |
1700 | RVR one thousand seven hundred |
ICAO states: "When radiotelephony is used, the abbreviations and terms are transmitted using the individual letters in non-phonetic form." The following abbreviations and terms refer to this statement:
ACC, ADF, ADS-B, ADS-C, AFTN, ATA, ATC, ATD, CPDLC, DME, ETA, ETD, FIR, FMS, GCA, GLS, GNSS, GPS, GPWS, HF, IFR, ILS, IMC, MLS, NDB, NOZ, NTZ, PAR, PDC, PSR, QDM, QFE, QNH, RCP, RNP, RPI, RVR, RVSM, SSR, TMA, UHF, UIR, UTC, VFR, VHF, VIP, VMC, VOR.
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