Emergency KeywordsRed and white navigational buoy marked “EB” floating in open water, used as a marine channel marker for safe navigation.

Master the core language of marine communications: the NATO phonetic alphabet (Alpha, Bravo, Charlie), standard radio control words, and the emergency keywords used on the water. Built for quick reference when clarity matters.

Phonetic Alphabet Radio Control Words Mayday / Pan-Pan / Securité Radio Checks Standard Responses
Important Safety Disclaimer

Informational only. Always follow official Coast Guard regulations and local guidance. In emergencies, call 911 and/or hail VHF Channel 16.

Why these words matter

In bad weather, low visibility, or high stress, normal speech gets messy fast. Standardized words reduce confusion, speed up response, and help rescuers understand your situation the first time.

  • Phonetics prevent “B vs D” mistakes when signals are weak.
  • Control words keep transmissions organized and brief.
  • Emergency keywords tell everyone exactly how serious the situation is.

Rule: When the message is important, slow down, use phonetics, and repeat critical details.

Who this guide is for

Essential reference material for VHF radio operators, offshore cruisers, commercial mariners, and anyone responsible for onboard communications and safety operations.