A decimal point is indicated by:
- 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.
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 |
Information
Transmission of speed and turn
Numbers shall be transmitted by pronouncing the number of hundreds followed by HUNDRED and the ten and unit digits.
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… |
Information
Transmission 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
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
