What safety signal call word is spoken three times, followed by the station call letters spoken three times, to announce a storm warning, dangers to navigation, or special aid to navigation?

• A. Securite
• B. Mayday
• C. Pan-Pan
• D. Alert

Answer: (A)

In maritime radiotelephony, a safety signal is used to broadcast messages about weather warnings, dangers to navigation, or special aids to navigation. The word chosen for this purpose is spoken three times, then the station’s call letters are spoken three times, to clearly indicate a safety notice from a station. Securite is the designated safety signal for these kinds of messages, and it is used exactly in that pattern. It’s distinct from Mayday (distress), Pan-Pan (urgency), or other terms that aren’t used for safe-navigation warnings. So this question describes a storm warning or navigational danger announcement, which is why Securite is the correct choice.