If the term 'Securité' (pronounced SEC-URI-TAY) is used to prefix a radio message, this means...
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A
a broadcast containing safety information made by a military ground station
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B
a broadcast containing safety information made by a station in the aeronautical mobile service
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C
a broadcast containing safety information made by a ground station
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D
a message containing safety information directed at a particular aircraft
In aviation, a radio message prefixed with the term "Sécurité" (the word is French for "safety" and is pronounced "say-cure-ee-tay") indicates that the transmitting station is broadcasting an important message concerning the safety of navigation or a meteorological warning.
It is a safety signal, often repeated three times ("Sécurité, sécurité, sécurité"), to alert other stations to the importance of the following message. This type of message is typically made by a military station.
However, this is not an emergency message, and is considered a lower priority to distress or urgency messages.
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