SERA.14045 Transmitting technique

• Regulation (EU) 2024/404 found in: SERA (923/2012) Standardised European Rules of the Air (Dec 2024)
• Regulation (EU) 2016/1185 found in: SERA (923/2012) Standardised European Rules of the Air (Feb 2023)

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: <table border="1" cellpadding="0" cellspacing="0" width="568"><thead><tr><td colspan="2" valign="top" width="568"><p><b>Table S14-4</b></p></td></tr><tr><td valign="top" width="132"><p><b>Phrase</b></p></td><td valign="top" width="437"><p><b>Meaning</b></p></td></tr></thead><tr><td valign="top" width="132"><p>ACKNOWLEDGE</p></td><td valign="top" width="437"><p>‘Let me know that you have received and understood this message.’</p></td></tr><tr><td valign="top" width="132"><p>AFFIRM</p></td><td valign="top" width="437"><p>‘Yes.’</p></td></tr><tr><td valign="top" width="132"><p>APPROVED</p></td><td valign="top" width="437"><p>‘Permission for proposed action granted.’</p></td></tr><tr><td valign="top" width="132"><p>BREAK</p></td><td valign="top" width="437"><p>‘I hereby indicate the separation between portions of the message.’</p></td></tr><tr><td valign="top" width="132"><p>BREAK BREAK</p></td><td valign="top" width="437"><p>‘I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment.’</p></td></tr><tr><td valign="top" width="132"><p>CANCEL</p></td><td valign="top" width="437"><p>‘Annul the previously transmitted clearance.’</p></td></tr><tr><td valign="top" width="132"><p>CHECK</p></td><td valign="top" width="437"><p>‘Examine a system or procedure.’</p></td></tr><tr><td valign="top" width="132"><p>CLEARED</p></td><td valign="top" width="437"><p>‘Authorised to proceed under the conditions specified.’</p></td></tr><tr><td valign="top" width="132"><p>CONFIRM</p></td><td valign="top" width="437"><p>‘I request verification of: (clearance, instruction, action, information).’</p></td></tr><tr><td valign="top" width="132"><p>CONTACT</p></td><td valign="top" width="437"><p>‘Establish communications with…’</p></td></tr><tr><td valign="top" width="132"><p>CORRECT</p></td><td valign="top" width="437"><p>‘True’ or ‘Accurate’.</p></td></tr><tr><td valign="top" width="132"><p>CORRECTION</p></td><td valign="top" width="437"><p>‘An error has been made in this transmission (or message indicated). The correct version is…’</p></td></tr><tr><td valign="top" width="132"><p>DISREGARD</p></td><td valign="top" width="437"><p>‘Ignore.’</p></td></tr><tr><td valign="top" width="132"><p>HOW DO YOU READ</p></td><td valign="top" width="437"><p>‘What is the readability of my transmission?’ (see point <a href="#_DxCrossRefBm413419495">SERA.14070(c)</a>)</p></td></tr><tr><td valign="top" width="132"><p>I SAY AGAIN</p></td><td valign="top" width="437"><p>‘I repeat for clarity or emphasis.’</p></td></tr><tr><td valign="top" width="132"><p>MAINTAIN</p></td><td valign="top" width="437"><p>‘Continue in accordance with the condition(s) specified’ or in its literal sense.</p></td></tr><tr><td valign="top" width="132"><p>MONITOR</p></td><td valign="top" width="437"><p>‘Listen out on (frequency).’</p></td></tr><tr><td valign="top" width="132"><p>NEGATIVE</p></td><td valign="top" width="437"><p>‘No’ or ‘Permission not granted’ or ‘That is not correct’ or ‘Not capable’.</p></td></tr><tr><td valign="top" width="132"><p>OVER</p></td><td valign="top" width="437"><p>‘My transmission is ended, and I expect a response from you.’</p></td></tr><tr><td valign="top" width="132"><p>OUT</p></td><td valign="top" width="437"><p>‘This exchange of transmissions is ended and no response is expected.’</p></td></tr><tr><td valign="top" width="132"><p>READ BACK</p></td><td valign="top" width="437"><p>‘Repeat all, or the specified part, of this message back to me exactly as received.’</p></td></tr><tr><td valign="top" width="132"><p>RECLEARED</p></td><td valign="top" width="437"><p>‘A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof.’</p></td></tr><tr><td valign="top" width="132"><p>REPORT</p></td><td valign="top" width="437"><p>‘Pass me the following information…’</p></td></tr><tr><td valign="top" width="132"><p>REQUEST</p></td><td valign="top" width="437"><p>‘I should like to know…’ or ‘I wish to obtain…’</p></td></tr><tr><td valign="top" width="132"><p>ROGER</p></td><td valign="top" width="437"><p>‘I have received all of your last transmission.’</p></td></tr><tr><td valign="top" width="132"><p>SAY AGAIN</p></td><td valign="top" width="437"><p>‘Repeat all, or the following part, of your last transmission.’</p></td></tr><tr><td valign="top" width="132"><p>SPEAK SLOWER</p></td><td valign="top" width="437"><p>‘Reduce your rate of speech.’</p></td></tr><tr><td valign="top" width="132"><p>STANDBY</p></td><td valign="top" width="437"><p>‘Wait and I will call you.’</p></td></tr><tr><td valign="top" width="132"><p>UNABLE</p></td><td valign="top" width="437"><p>‘I cannot comply with your request, instruction, or clearance.’</p></td></tr><tr><td valign="top" width="132"><p>WILCO</p></td><td valign="top" width="437"><p>(Abbreviation for ‘will comply’)</p><p>‘I understand your message and will comply with it.’</p></td></tr><tr><td valign="top" width="132"><p>WORDS TWICE</p></td><td valign="top" width="437"><p>(a) As a request: ‘Communication is difficult. Please send every word, or group of words, twice.’</p><p>(b) As information: ‘Since communication is difficult, every word, or group of words, in this message will be sent twice.’</p></td></tr></table> (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. *[applicable from 1 May 2025 – Regulation (EU) 2024/404]* SERA.14045 Transmitting technique Regulation (EU) 2016/1185 (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: <table border="1" cellpadding="0" cellspacing="0" width="568"><thead><tr><td colspan="2" valign="top" width="568"><p><b>Table S14-4</b></p></td></tr><tr><td valign="top" width="132"><p><b>Phrase</b></p></td><td valign="top" width="437"><p><b>Meaning</b></p></td></tr></thead><tr><td valign="top" width="132"><p>ACKNOWLEDGE</p></td><td valign="top" width="437"><p>‘Let me know that you have received and understood this message.’</p></td></tr><tr><td valign="top" width="132"><p>AFFIRM</p></td><td valign="top" width="437"><p>‘Yes.’</p></td></tr><tr><td valign="top" width="132"><p>APPROVED</p></td><td valign="top" width="437"><p>‘Permission for proposed action granted.’</p></td></tr><tr><td valign="top" width="132"><p>BREAK</p></td><td valign="top" width="437"><p>‘I hereby indicate the separation between portions of the message.’</p></td></tr><tr><td valign="top" width="132"><p>BREAK BREAK</p></td><td valign="top" width="437"><p>‘I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment.’</p></td></tr><tr><td valign="top" width="132"><p>CANCEL</p></td><td valign="top" width="437"><p>‘Annul the previously transmitted clearance.’</p></td></tr><tr><td valign="top" width="132"><p>CHECK</p></td><td valign="top" width="437"><p>‘Examine a system or procedure.’</p></td></tr><tr><td valign="top" width="132"><p>CLEARED</p></td><td valign="top" width="437"><p>‘Authorised to proceed under the conditions specified.’</p></td></tr><tr><td valign="top" width="132"><p>CONFIRM</p></td><td valign="top" width="437"><p>‘I request verification of: (clearance, instruction, action, information).’</p></td></tr><tr><td valign="top" width="132"><p>CONTACT</p></td><td valign="top" width="437"><p>‘Establish communications with…’</p></td></tr><tr><td valign="top" width="132"><p>CORRECT</p></td><td valign="top" width="437"><p>‘True’ or ‘Accurate’.</p></td></tr><tr><td valign="top" width="132"><p>CORRECTION</p></td><td valign="top" width="437"><p>‘An error has been made in this transmission (or message indicated). The correct version is…’</p></td></tr><tr><td valign="top" width="132"><p>DISREGARD</p></td><td valign="top" width="437"><p>‘Ignore.’</p></td></tr><tr><td valign="top" width="132"><p>HOW DO YOU READ</p></td><td valign="top" width="437"><p>‘What is the readability of my transmission?’ (see point <a href="#_DxCrossRefBm918188205">SERA.14070(c)</a>)</p></td></tr><tr><td valign="top" width="132"><p>I SAY AGAIN</p></td><td valign="top" width="437"><p>‘I repeat for clarity or emphasis.’</p></td></tr><tr><td valign="top" width="132"><p>MAINTAIN</p></td><td valign="top" width="437"><p>‘Continue in accordance with the condition(s) specified’ or in its literal sense.</p></td></tr><tr><td valign="top" width="132"><p>MONITOR</p></td><td valign="top" width="437"><p>‘Listen out on (frequency).’</p></td></tr><tr><td valign="top" width="132"><p>NEGATIVE</p></td><td valign="top" width="437"><p>‘No’ or ‘Permission not granted’ or ‘That is not correct’ or ‘Not capable’.</p></td></tr><tr><td valign="top" width="132"><p>OVER</p></td><td valign="top" width="437"><p>‘My transmission is ended, and I expect a response from you.’</p></td></tr><tr><td valign="top" width="132"><p>OUT</p></td><td valign="top" width="437"><p>‘This exchange of transmissions is ended and no response is expected.’</p></td></tr><tr><td valign="top" width="132"><p>READ BACK</p></td><td valign="top" width="437"><p>‘Repeat all, or the specified part, of this message back to me exactly as received.’</p></td></tr><tr><td valign="top" width="132"><p>RECLEARED</p></td><td valign="top" width="437"><p>‘A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof.’</p></td></tr><tr><td valign="top" width="132"><p>REPORT</p></td><td valign="top" width="437"><p>‘Pass me the following information…’</p></td></tr><tr><td valign="top" width="132"><p>REQUEST</p></td><td valign="top" width="437"><p>‘I should like to know…’ or ‘I wish to obtain…’</p></td></tr><tr><td valign="top" width="132"><p>ROGER</p></td><td valign="top" width="437"><p>‘I have received all of your last transmission.’</p></td></tr><tr><td valign="top" width="132"><p>SAY AGAIN</p></td><td valign="top" width="437"><p>‘Repeat all, or the following part, of your last transmission.’</p></td></tr><tr><td valign="top" width="132"><p>SPEAK SLOWER</p></td><td valign="top" width="437"><p>‘Reduce your rate of speech.’</p></td></tr><tr><td valign="top" width="132"><p>STANDBY</p></td><td valign="top" width="437"><p>‘Wait and I will call you.’</p></td></tr><tr><td valign="top" width="132"><p>UNABLE</p></td><td valign="top" width="437"><p>‘I cannot comply with your request, instruction, or clearance.’</p></td></tr><tr><td valign="top" width="132"><p>WILCO</p></td><td valign="top" width="437"><p>(Abbreviation for ‘will comply’)</p><p>‘I understand your message and will comply with it.’</p></td></tr><tr><td valign="top" width="132"><p>WORDS TWICE</p></td><td valign="top" width="437"><p>(a) As a request: ‘Communication is difficult. Please send every word, or group of words, twice.’</p><p>(b) As information: ‘Since communication is difficult, every word, or group of words, in this message will be sent twice.’</p></td></tr></table> #### 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: <table bgcolor="#d9d9d9" cellpadding="7" cellspacing="0"> <col/> <col/> <thead> <tr> <td bgcolor="#808080" colspan="2" valign="top"><p align="center"> <b>Table S14-4</b></p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="center"> <b>Phrase</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>Meaning</b></p> </td> </tr> </thead> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> ACKNOWLEDGE</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Let me know that you have received and understood this message.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> AFFIRM</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Yes.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> APPROVED</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Permission for proposed action granted.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> BREAK</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I hereby indicate the separation between portions of the message.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> BREAK BREAK</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CANCEL</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Annul the previously transmitted clearance.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CHECK</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Examine a system or procedure.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CLEARED</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Authorised to proceed under the conditions specified.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CONFIRM</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I request verification of: (clearance, instruction, action, information).’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CONTACT</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Establish communications with…’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CORRECT</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘True’ or ‘Accurate’.</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> CORRECTION</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘An error has been made in this transmission (or message indicated). The correct version is…’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> DISREGARD</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Ignore.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> HOW DO YOU READ</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘What is the readability of my transmission?’ (see point <u><a href="#_DxCrossRefBm558475689">SERA.14070(c)</a></u>)</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> I SAY AGAIN</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I repeat for clarity or emphasis.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> MAINTAIN</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Continue in accordance with the condition(s) specified’ or in its literal sense.</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> MONITOR</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Listen out on (frequency).’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> NEGATIVE</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘No’ or ‘Permission not granted’ or ‘That is not correct’ or ‘Not capable’.</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> OVER</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘My transmission is ended, and I expect a response from you.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> OUT</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘This exchange of transmissions is ended and no response is expected.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> READ BACK</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Repeat all, or the specified part, of this message back to me exactly as received.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> RECLEARED</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> REPORT</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Pass me the following information…’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> REQUEST</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I should like to know…’ or ‘I wish to obtain…’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> ROGER</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I have received all of your last transmission.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> SAY AGAIN</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Repeat all, or the following part, of your last transmission.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> SPEAK SLOWER</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Reduce your rate of speech.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> STANDBY</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘Wait and I will call you.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> UNABLE</p> </td> <td bgcolor="#d9d9d9"><p align="left"> ‘I cannot comply with your request, instruction, or clearance.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> WILCO</p> </td> <td bgcolor="#d9d9d9"><p align="left"> (Abbreviation for ‘will comply’)</p> <p align="left">‘I understand your message and will comply with it.’</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> WORDS TWICE</p> </td> <td bgcolor="#d9d9d9"><p align="left"> (a) As a request: ‘Communication is difficult. Please send every word, or group of words, twice.’</p> <p align="left">(b) As information: ‘Since communication is difficult, every word, or group of words, in this message will be sent twice.’</p> </td> </tr> </tbody> </table> (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.