CAP 413 Radiotelephony Manual
Chapter 2 Page 6
* Not normally used in U/VHF Communications.
** Not used by Air/Ground Communication Service Operators (c/s “Radio”).
‡ Not used by Air/Ground Communication Service Operators (c/s “Radio”) or Flight
Information Service Officers (c/s “Information”).
HOLD SHORT** Stop before reaching the specified location.
Note: Only used in limited circumstances where no defined
point exists (e.g. where there is no suitably located holding
point), or to reinforce a clearance limit.
HOW DO YOU READ What is the readability of my transmission?
I SAY AGAIN I repeat for clarity or emphasis.
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 not granted; or That is not correct; or Not
capable.
NEGATIVE I SAY AGAIN May be used if repeated incorrect readbacks are given by the
pilot and additional emphasis is required.
OUT* This exchange of transmissions is ended and no response is
expected.
OVER* My transmission is ended and I expect a response from you.
PASS YOUR MESSAGE Proceed with your message.
READ BACK Repeat all, or the specified part, of this message back to me
exactly as received.
RECLEARED To be used only in relation to routings and NOT for instructions
to climb or descend.
REPORT ** Pass requested information.
REQUEST I should like to know... or I wish to obtain...
ROGER I have received all your last transmission.
Note: Under no circumstances to be used in reply to a question
requiring a direct answer in the affirmative (AFFIRM) or
negative (NEGATIVE).
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.
Note: No onward clearance to be assumed. The caller would
normally re-establish contact if the delay is lengthy. STANDBY
is not an approval or denial.
UNABLE I cannot comply with your request, instruction or clearance.
Unable is normally followed by a reason.
WILCO I understand your message and will comply with it
(abbreviation for will comply)
WORDS TWICE As a request: Communication is difficult. Please send every
word twice.
As Information: Since communication is difficult, every word in
this message will be sent twice.
Table 7 (Continued)
Word/Phrase Meaning
31 March 2011
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