Automatic Identification Systems
Automatic Identification Systems (AIS) are advanced tracking systems used in maritime navigation for the identification and location of vessels. They are designed to provide information about a ship's identity, position, course, and speed to other ships and to maritime traffic control centers, enhancing safety and efficiency in navigation. AIS uses VHF radio broadcasts to transmit this data, which can be displayed on a ship's radar or electronic chart display. There are two types of AIS: Class A, which is mandatory for all ships of 300 gross tonnage and upwards engaged on international voyages, and Class B, which is used by smaller vessels. AIS is particularly useful in avoiding collisions in busy shipping lanes and in poor visibility conditions. It also aids in search and rescue operations by providing accurate location data. However, it is not a substitute for good seamanship and should be used in conjunction with other navigational aids.
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