RTC – MOD-02 – Pt.07 – Transmitting Techniques Letters and Numbers

When transmitting letters you should use the standard NATO Phonetic Alphabet written below in “Letter – Code word – Pronunciation” style

A – Alfa – AL fah                        N – November – NOH vem ber
B – Bravo – BRAH voh              O – Oscar – OSS car
C – Charlie – CHAR lee             P – Papa – PAH pah
D – Delta – DEL tah                  Q – Quebec – keh BECK
E – Echo – EKK oh                    R – Romeo – ROW me oh
F – Foxtrot – FOKS trot            S – Sierra – see AIR ah
G – Golf – Golf                            T – Tango – TANG go
H – Hotel – HO tel                    U – Uniform – YOU nee form
I – India – IN dee ah                  V – Victor – VIK ter
J – Juliett – JEW lee ett            W – Whiskey – WISS key
K – Kilo – KEY loh                      X – X-ray – EKS ray
L – Lima – LEE mah                   Y – Yankee – YANG kee
M – Mike – Mike                          Z – Zulu – ZOO luu

– (hyphen) – Dash

When transmitting Numbers you should use the standard NATO Phonetic Alphabet written below in “Digit – Code word – Pronunciation” style

0 – Zero – ZE-RO                5 – Five – FIFE
1 – One – WUN                    6 – Six – SIX 
2 – Two – TOO                     7 – Seven – SEV-EN
3 – Three – TREE                8 – Eight  – AIT 
4 – Four – FOW-ER            9 – Niner – NIN-ER

 100 – Hundred – HUN-dred    1000 – Thousand – TOU-SAND
. (decimal point) – Decimal – DAY-SEE-MAL

When transmitting messages containing aircraft callsigns, altimeter settings, flight levels (with the exception of FL100, 200, 300 etc. which are expressed as ‘Flight Level (number) HUN DRED’), headings, wind speeds/directions, pressure settings, airspeed, transponder codes and frequencies, each digit must be transmitted separately

examples

FL040 – “Flight level four zero” – Note that all FLs below FL100 will be written with a preceding “0” that Zero should not be communicated

FL200 – “Flight level two hundred”

FL120 – “Flight level one two zero”

Fq 129.450 – “Frequency one two nine decimal four five zero”

Surface Wind 120/15 – “Wind one two zero one five”

Runway headings will only be given as the first 2 digits rounding up or down as necessary e.g. runway heading of 088 degrees becomes RW 09 – “Runway zero niner”