SERA.14045
Transmitting technique
Regulation (EU) 2024/404
(a) Transmissions shall be conducted concisely in a normal conversational tone.
(b) The following words and phrases shall be used in radiotelephony communications as appropriate and shall have the meaning ascribed in Table S14-4:
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Table S14-4 |
|
|
Phrase |
Meaning |
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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.’ |
|
BREAK BREAK |
‘I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment.’ |
|
CANCEL |
‘Annul the previously transmitted clearance.’ |
|
CHECK |
‘Examine a system or procedure.’ |
|
CLEARED |
‘Authorised to proceed under the conditions specified.’ |
|
CONFIRM |
‘I request verification of: (clearance, instruction, action, information).’ |
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CONTACT |
‘Establish communications with…’ |
|
CORRECT |
‘True’ or ‘Accurate’. |
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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?’ (see point SERA.14070(c)) |
|
I SAY AGAIN |
‘I repeat for clarity or emphasis.’ |
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MAINTAIN |
‘Continue in accordance with the condition(s) specified’ or in its literal sense. |
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MONITOR |
‘Listen out on (frequency).’ |
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NEGATIVE |
‘No’ or ‘Permission not granted’ or ‘That is not correct’ or ‘Not capable’. |
|
OVER |
‘My transmission is ended, and I expect a response from you.’ |
|
OUT |
‘This exchange of transmissions is ended and no response is expected.’ |
|
READ BACK |
‘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…’ |
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ROGER |
‘I have received all of your last transmission.’ |
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SAY AGAIN |
‘Repeat all, or the following part, of your last transmission.’ |
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SPEAK SLOWER |
‘Reduce your rate of speech.’ |
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STANDBY |
‘Wait and I will call you.’ |
|
UNABLE |
‘I cannot comply with your request, instruction, or clearance.’ |
|
WILCO |
(Abbreviation for ‘will comply’) ‘I understand your message and will comply with it.’ |
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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.’ |
(c) The expression
“TAKE-OFF” shall only be used in radiotelephony when an aircraft is cleared
for take-off or when cancelling a take-off clearance.
EASA aviation rules mandate concise radio transmissions using normal conversational tone. Specific words and phrases like "AFFIRM," "NEGATIVE," and "WILCO" have defined meanings for clarity. "TAKE-OFF" is restricted to take-off clearances. Pilots must adhere to standard phraseology for effective communication and aviation safety.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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