Quick Answer
Mayday is the most widely recognized distress call at sea, but it's not the only one; Pan-Pan and Mayday have distinct meanings and uses in emergency situations.
Types of Distress Calls
There are three types of distress calls used in emergency situations: Mayday, Pan-Pan, and Security. Each has a specific meaning and is used in different contexts. Mayday is used in life-threatening situations where a vessel is in grave danger and immediate assistance is required. Pan-Pan is used to signal a less urgent situation, such as a medical emergency or a vessel in distress but not immediately life-threatening. Security is used to report a potential threat to safety, such as a suspicious vessel or an armed boarding.
Distress Call Procedures
When using a distress call, it’s essential to follow proper procedures to ensure the message is clear and understood. The International Telecommunication Union (ITU) sets international standards for distress frequencies and procedures. For Mayday, the ITU recommends using the frequency of 2182 kHz for medium frequency and 121.5 MHz for very high frequency (VHF). When using a distress call, operators must clearly state their name, position, and type of distress, followed by the call sign and the distress message.
Radio Etiquette
When receiving a distress call, radio operators must follow proper etiquette to ensure the situation is handled efficiently. This includes immediately acknowledging the call, taking note of the vessel’s name, position, and type of distress, and relaying this information to nearby vessels and shore-based authorities. Operators must also be aware of the different types of distress calls and respond accordingly, prioritizing Mayday calls over Pan-Pan and Security calls.
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