Radio Telephony

Refer: AIP GEN 3.4(5)

A

ALFA

AL fah

N

NOVEMBER

no VEM ber

B

BRAVO

BRAH voh

O

OSCAR

OSS cah

C

CHARLIE

CHAR lee or

SHAR lee

P

PAPA

pah PAH

D

DELTA

DELL tah

Q

QUEBEC

keh BECK

E

ECHO

ECK ho

R

ROMEO

ROW me oh

F

FOXTROT

FOKS trot

S

SIERRA

see AIR rah

G

GOLF

GOLF

T

TANGO

TANG go

H

HOTEL

ho TELL

U

UNIFORM

YOU nee form or
OO nee form

I

INDIA

IN dee A

V

VICTOR

VIK tah

J

JULIETT

JEW lee ETT

Q

WHISKEY

WISS key

K

KILO

KEY loh

X

X-RAY

ECKS ray

L

LIMA

LEE mah

Y

YANKEE

YANG key

M

MIKE

MIKE

Z

ZULU

ZOO loo

For pronunciation, syllables to be emphasised are in all capitals.

Radio Telephony

Refer: AIP GEN 3.4(5)

0

ZE-RO

5

FIFE

Decimal

DAY-SEE-MAL

1

WUN

6

SIX

Hundred

HUN-dred

2

TOO

7

SEV-en

Thousand

TOU-sand

3

TREE

8

AIT

4

FOW-er

9

NIN-er

The syllables printed in capital letters in the above list are to be stressed.

Radio Telephony

Refer: AIP GEN 3.4(5)

ACKNOWLEDGE

Let me know that you have received and understood this message.

AFFIRM

Yes.

APPROVED

Permission for proposed action granted.

BREAK

I hereby indicate the separation between portions of the message (to be used where there is no clear distinction between the text and other portions of the message).

BREAK BREAK

I hereby indicate separation between messages transmitted to different aircraft in a very busy environment.

CANCEL

Annul the previously transmitted clearance.

CHECK

Examine a system or procedure (no answer is normally expected).

CLEARED

Authorised to proceed under the conditions specified.

CONFIRM

I request verification of: (clearance, instruction, action, information).

CONTACT

Establish communication with...

CORRECT

True or Accurate.

CORRECTION

An error has been made in this transmission (or message indicated) the correct version is...

DISREGARD

Ignore.

HOW DO YOU READ

What is the readability of my transmission? The readability scale is:

  1. Unreadable

  2. Readable now and then

  3. Readable but with difficulty

  4. Readable

  5. Perfectly readable.

Radio Telephony

Refer: AIP GEN 3.4(5)

I SAY AGAIN

I repeat for clarity or emphasis.

MAYDAY

My aircraft and its occupants are threatened by grave and imminent danger and/or I require immediate assistance.

MAINTAIN

Continue in accordance with the condition(s) specified or in its literal sense, e.g. “Maintain VFR”.

MONITOR

Listen out on (frequency).

NEGATIVE

No or Permission is not granted or That is not correct or Not capable.

OUT

This exchange of transmissions is ended and I expect no response from you (not normally used in VHF or satellite communication).

OVER

My transmission is ended and I expect a response from you (not normally used in VHF or satellite communication).

PAN PAN

I have an urgent message to transmit concerning the safety of my aircraft or other vehicle or of some person on board or within sight but I do not require immediate assistance.

READBACK

Repeat all, or the specified part, of this message back to me exactly as received.

RECLEARED

A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof.

REPORT

Pass me the following information.

REQUEST

I should like to know or I wish to obtain.

ROGER

I have received all of your last transmission (under NO circumstances to be used in reply to a question requiring READBACK.

Radio Telephony

Refer: AIP GEN 3.4(5)

SAY AGAIN

Repeat all or the following part of your last transmission.

SPEAK SLOWER

Reduce your rate of speech.

STANDBY

Wait and I will call you.

UNABLE

I cannot comply with your request, instruction or clearance (normally followed by a reason).

VERIFY

Check and confirm with originator.

WILCO

I understand your message and will comply with it.

WORDS TWICE

a. as a request: Communication is difficult. 

   Please send every word or group of words 

   twice.
b. as information: Since communication is 

   difficult every word or group of words in this

   message will be sent twice.