220.127.116.11.1.1 All numbers, except as prescribed in 18.104.22.168.1.2, shall be transmitted by pronouncing each digit separately.
Note. The following examples illustrate the application of this procedure (see 22.214.171.124.3.1 for pronunciation).
aircraft call signs
Air China two three eight
Olympic two four two
flight level one eight zero
flight level two zero zero
heading one zero zero
heading zero eight zero
wind direction and speed
200 degrees 70 knots
wind two zero zero degrees seven zero knots
160 degrees 18 knots gusting 30 knots
wind one six zero degrees one eight knots gusting three zero knots
squawk two four zero zero
squawk four two zero three
runway two seven
runway three zero
QNH one zero one zero
QNH one zero zero zero
126.96.36.199.1.2 All numbers used in the transmission of altitude, cloud height, visibility and runway visual range (RVR) information, which contain whole hundreds and whole thousands, shall be transmitted by pronouncing each digit in the number of hundreds or thousands followed by the word HUNDRED or THOUSAND as appropriate. Combinations of thousands and whole hundreds shall be transmitted by pronouncing each digit in the number of thousands followed by the word THOUSAND followed by the number of hundreds followed by the word HUNDRED.
188.8.131.52.1.3 Numbers containing a decimal point shall be transmitted as prescribed in 184.108.40.206.1.1 with the decimal point in appropriate sequence being indicated by the word DECIMAL.
Note 1. The following examples illustrate the application of this procedure:
ONE ZERO ZERO DECIMAL THREE
THREE EIGHT ONE FOUR THREE DECIMAL NINE
Note 2. For identification of VHF frequencies the number of digits used after the decimal point are determined on the basis of the channel spacing (220.127.116.11.3.4.3 refers to frequencies separated by 25 kHz, 18.104.22.168.3.4.4 refers to frequencies separated by 8.33 kHz). Note 3. The channelling/frequency pairing relationship for 8.33 kHz and 25 kHz is found in Table 4-1 (bis), Volume V.
22.214.171.124.1.4 PANS. When transmitting time, only the minutes of the hour should normally be required. Each digit should be pronounced separately. However, the hour should be included when any possibility of confusion is likely to result.
Note. The following example illustrates the application of this procedure when applying the provisions of 126.96.36.199.2:
0920 (9:20 A.M.)
TOO ZE-RO or
ZE-RO NIN-er TOO ZE-RO
1643 (4:43 P.M.)
FOW-er TREE or
WUN SIX FOW-er TREE
188.8.131.52.2 Verification of numbers
When it is desired to verify the accurate reception of numbers the person transmitting the message shall request the person receiving the message to read back the numbers.
184.108.40.206.3 Pronunciation of numbers
When the provisions of 220.127.116.11.2 (see below) are applied, numbers shall be transmitted using the following pronunciation:
Numeral or numeral element
Note. The syllables printed in capital letters in the above list are to be stressed; for example, the two syllables in ZE-RO are given equal emphasis, whereas the first syllable of FOW-er is given primary emphasis.