Radiotelephone Procedures

PROCEDURE WORDS (PROWORDS)
WAIT - I must pause for a few seconds.
WAIT, OUT - I must pause longer than a few seconds.
WILCO - Have received your last message, understand it, and will comply; to be used only by the addressee of a message. Since the meaning of ROGER is included in that of WILCO, the two prowords are never used together.
WORD AFTER - I refer to the word of the message that follows ...
WORD BEFORE - I refer to the word of the message that precedes ...

PROCEDURE WORDS (PROWORDS)
WORDS TWICE - Communication is difficult; transmit each phrase or code group twice. Used as an order, request or as information.
WRONG - Your transmission was incorrect. The correct version is ...

EMERGENCY CALL
MAYDAY, MAYDAY, MAYDAY – Indicates an emergency situation with a threat to human life. Usually repeated three times and followed by a brief description of the situation.
PAN, PAN, PAN – There is a potentially life – threatening situation developing. Give a brief description.
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