Module 3 - Phonetic Alphabet & Prowords
Prowords That Prevent Ambiguity
Over and Out manage turn-taking. Say Again manages a reception failure. Stand By manages a short delay while information is obtained. Mistake and Correction repair your own message. These jobs are related, but they are not interchangeable.
The MCA examples show Over at the end of calls that invite a response and Out at the end of an all-stations urgency announcement before moving to the nominated working channel. The word must fit the real procedure and the next expected action.
A procedure word cannot make uncertain information true. If a position, time or instruction remains unclear, repeat or verify the detail. Do not use Received as a blanket substitute for a full response where an instruction or advice needs an explicit will, can, will not or cannot answer.
| Situation | Use | What happens next |
|---|---|---|
| A reply is expected | Over | Release PTT and listen |
| The exchange is finished | Out | No reply is expected |
| The message was not properly heard | Say Again | The requested message or part is repeated |
| Information is not ready | Stand By + time interval | Return within the stated interval |
| You made a spoken error | Mistake; Correction | Give the corrected part clearly |
Optional quick check
Section 6 of 7
You did not hear the channel number in another station's message. Which request fits?
Sources and factual review
Reviewed 20 August 2026 - Compass Revision editorial review.
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