Module 3 of 10
Phonetic Alphabet & Prowords
Phonetic alphabet, numbers, vessel names, and standard radio words such as over, out, say again, and received.
Why Phonetics Matter
The phonetic alphabet makes vessel names, callsigns, waypoints, and spellings clear in noise, weak signal, or stress.
Use phonetics when there is any chance of confusion. Practice your own vessel name and callsign until it is automatic.
Key Points
- Use standard NATO phonetics
- Practice your vessel name
- Spell slowly and deliberately
Numbers and Positions
Numbers should be spoken clearly and grouped sensibly. Coordinates and MMSI numbers must be repeated accurately because one wrong digit can change the meaning completely.
In an emergency, position must be given in a form rescuers can use: latitude and longitude, bearing and distance, or a clear local description.
Key Points
- Speak digits one at a time when needed
- Repeat critical numbers
- Use a usable position format
Useful Prowords
Prowords keep radio traffic short and unambiguous. Common examples include Over, Out, Say Again, Received, Correction, and Stand By.
Do not say Over and Out together. Over invites a reply; Out means the exchange is finished.
Key Points
- Over means reply expected
- Out means finished
- Say Again asks for repetition