2024-04-15T10:22:59.7143971402025-06-01T14:36:29.786254413PT1H53M4S19LibreOffice/25.2.3.2$Linux_X86_64 LibreOffice_project/520$Build-2 0 0 48685 21803 true false view2 27016 92361 0 0 48683 21802 0 1 false 100 false false false false false false false true true false 0 false true false false false true false false false 0 true false false false false false true false false true false true true false false false false false false false true false true false false false false false false high-resolution false 1748045 false true false true false false false true true en AU true false 0 true false false true true true false true false false false false false true false false 0 false true false false true true false false true 1 false false false false false false false true false false false true true false false true false true 2549664 true false false Document Metadata Radio Telephony hosted at: https://system-f.gitlab.io/documentation/miscellaneous source hosted at: https://gitlab.com/system-f/documentation/miscellaneous last updated at time: 2026-08-03 00:14:10 UTC by Tony Morris <tonymorris@gmail.com> revision: 18a77824a1a3fc03a8f8f96da32e39a2e1e5fafb Page 4of 4 access control: public 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.