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STANDBY
“Wait and I will call you”.
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HOW DO YOU READ
“ What is the readability of my transmission?”
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OUT
“This exchange of transmissions is ended and no response is expected”.
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BREAK
“I hereby indicate the separation between portions of the message.”
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BREAK BREAK
“I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment”.
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SPEAK SLOWER
“ Reduce your rate of speech”.
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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”.
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UNABLE
“I cannot comply with your request, instruction or clearance”.
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I SAY AGAIN
“I repeat for clarity or emphasis”.
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SAY AGAIN
“Repeat all, or the following part, of your last transmission”.
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SAY AGAIN ALL BEFORE / BETWEEN / AFTER
“Repeat the specified part of this message before / between / after back to me exactly as received”.
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READ BACK
“Repeat all, or the specified part, of this message back to me exactly as received”.
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CORRECTION
“An error has been made in this transmission (or message indicated). The correct version is ….”
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REPORT
“Pass me the following information.…”.
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IF UNABLE (alternative instructions) AND ADVISE
If unable, maintain alternative instructions and advise.“
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ACKNOWLEDGE
“Let me know that you have received and understood this message”.
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CONFIRM
“I request verification of: (clearance, instruction, action, information)”.
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CLEARED
“Authorised to proceed under the conditions specified”.
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WILCO
(Abbreviation for “will comply”.) “I understand your message and will comply with it”.
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CONTACT
“Establish communication with..”.
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OVER
“My transmission is ended, and I expect a response from you”.
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ROGER
“I have received all of your last transmission”.
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APPROVED
“Permission for proposed action granted”.
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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”.
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CORRECT
“True” or “Accurate”.
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MAINTAIN
“Continue in accordance with the condition(s) specified” or in its literal sense, e.g., “Maintain VFR”.
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CHECK
“Examine a system or procedure”.
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RECLEARED
”A change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof”.
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CANCEL
“Annul the previously transmitted clearance”.
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REQUEST
“ I should like to know” or “I wish to obtain”.
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