One of the most important tools in modern shipping is the AIS (Automatic Identification System). It is an essential tool for identifying and tracking ship movements worldwide, and has become increasingly important in recent years. In this article we explain what AIS is, how it works and why it is indispensable for captains and seafarers.

AIS is an automatic identification system used in maritime navigation. It allows ships and coast guard stations to exchange information about the position, course and other relevant data of ships that are within their range. Unlike radar, which transmits waves and responds to their reflections, AIS actively transmits and receives data via VHF radio frequencies.

The information transmitted by AIS is diverse. They include static data such as the name of the ship, the IMO number and the ship type information. Furthermore, dynamic data such as the ship's position, course over ground (COG) and speed over ground (SOG) are provided. In addition, AIS can be used to transmit safety-related short messages, information about the ship's cargo and the expected arrival at the destination.

Data is usually transmitted at short, regular intervals, which makes it possible to track a ship's movements in real time. AIS can therefore play a crucial role in collision avoidance at sea. However, it can also provide valuable services for the coast guard, port authorities and search and rescue services.

Another important aspect of AIS is its ability to collect data from ships that are in remote or hard-to-reach areas. This can be particularly useful when ships are in distress or need other urgent assistance.

The importance of AIS in modern shipping cannot be overstated. It is an indispensable tool for improving the safety and efficiency of shipping. It enables better communication between ships and between ships and coastal stations, helps in collision avoidance and improves the ability to conduct search and rescue operations.

For masters and seafarers, AIS provides a valuable additional source of information that can be used in conjunction with other navigation instruments and systems to navigate safely and efficiently. It is important to remember that AIS is not a substitute for other navigation instruments and techniques, but a complement to them.

In summary, AIS is a powerful and versatile tool that makes a significant contribution to safety and efficiency in modern shipping. Although it is mandatory for certain types of vessels, it is also of great benefit for smaller boats and yachts and can help to significantly reduce the risk of collisions and other incidents at sea.

In addition, AIS is a useful tool for authorities and organizations responsible for monitoring vessel traffic, conducting search and rescue operations, and ensuring safety at sea. The ability to provide accurate and up-to-date information about the position and movement of ships can be crucial in many situations.

Given the above benefits, it is easy to understand why AIS is becoming increasingly important in the maritime industry. With advances in technology and the increasing prevalence of AIS equipment on ships of all types, its role and usefulness can be expected to grow even further in the years to come.

Although the use of AIS brings many benefits, it is important to emphasize that it does not provide a complete guarantee of safety at sea. Like all navigation instruments and systems, AIS should be considered as part of a comprehensive approach to maritime safety that also includes other aspects such as good seamanship, the use of charts and radar, and compliance with safety rules and procedures.

In conclusion, AIS is a remarkable tool that plays an increasingly central role in modern shipping. With its help, we can navigate more safely, efficiently and informedly at sea, improving the overall sailing experience. By understanding how AIS works and how to use it effectively, we can help improve safety at sea for ourselves and for others.