the word DECIMAL in the transmission of frequencies,
the word POINT in all other cases.
Examples:
Frequency
122.000
ONE TWO TWO DECIMAL ZERO
122.50
ONE TWO TWO DECIMAL FIVE
122.725
ONE TWO TWO DECIMAL SEVEN TWO FIVE
Other number with a decimal point
0.56 Mach
MACH POINT FIVE SIX
32.4 NM
THREE TWO POINT FOUR MILES
Exceptions:Transmission of altitude, cloud height, visibility and runway visual range (RVR)
Numbers which contain whole thousands, whole hundreds and combinations of
thousands and whole hundreds, shall be transmitted by pronouncing each digit in the number of thousands followed by the word THOUSAND and the number of hundreds followed by the word HUNDRED.
Examples:
Altitude
1800
ONE THOUSAND EIGHT HUNDRED
2500
TWO THOUSAND FIVE HUNDRED
900
NINE HUNDRED
3500
THREE THOUSAND FIVE HUNDRED
Cloud height
11000
ONE ONE THOUSAND
Visibility
1000
ONE THOUSAND METER
400
FOUR HUNDRED METER
Runway Visual Range (RVR)
1700
RVR ONE THOUSAND SEVEN HUNDRED
InformationTransmission of speed and turn
Numbers shall be transmitted by pronouncing the number of hundreds followed by HUNDRED and the ten and unit digits.
Examples:
Speed
100 kts
SPEED ONE HUNDRED KNOTS
275 kts
SPEED TWO (HUNDRED) AND SEVENTY FIVE KNOTS
Turn
90°
TURN NINETY DEGREES TO THE RIGHT
180° (U-turn on the ground)
MAKE A ONE EIGHTY TURN
360°
MAKE A THREE SIXETY TO THE…
InformationTransmission of azimut in terms of 12 o’clock in passing traffic information (radar environment) shall be done using ‘ten’, ‘eleven’ and ‘twelve’ o’clock.
Example:
F-GIHM, traffic information, traffic 10 o’clok, 5 miles, passing from right to left, FL200 Transmission of visibility above 10 kilometers shall be done using the ten digits.
Example:
Visibility 11 km => Visibility eleven kilometers