According to the IMO, what is a typical range for AIS communications at sea?

According to the IMO, what is a typical range for AIS communications at sea?

• A. 10-15 nm
• B. 20-30 nm
• C. 30-40 nm
• D. 50-60 nm

Answer: (B)

The typical range for AIS (Automatic Identification System) communications at sea, as recommended by the International Maritime Organization (IMO), is generally acknowledged to be about 20-30 nautical miles. This range allows vessels to effectively communicate vital navigational and operational information to each other, enhancing situational awareness and safety at sea. AIS operates on VHF (Very High Frequency) radio waves, which are capable of transmitting information such as ship identification, position, course, speed, and various other data. The range can be influenced by several factors including the height of the transmitting and receiving antennas, terrain, sea state, and atmospheric conditions. Understanding this typical range is crucial for mariners as it helps them gauge the effectiveness of their AIS systems in avoiding collisions and ensuring safe navigation in busy shipping lanes. By operating within this range, vessels can maximize their ability to receive and transmit AIS messages, thereby improving the overall safety of their journey.

The typical range for AIS (Automatic Identification System) communications at sea, as recommended by the International Maritime Organization (IMO), is generally acknowledged to be about 20-30 nautical miles. This range allows vessels to effectively communicate vital navigational and operational information to each other, enhancing situational awareness and safety at sea.

AIS operates on VHF (Very High Frequency) radio waves, which are capable of transmitting information such as ship identification, position, course, speed, and various other data. The range can be influenced by several factors including the height of the transmitting and receiving antennas, terrain, sea state, and atmospheric conditions.

Understanding this typical range is crucial for mariners as it helps them gauge the effectiveness of their AIS systems in avoiding collisions and ensuring safe navigation in busy shipping lanes. By operating within this range, vessels can maximize their ability to receive and transmit AIS messages, thereby improving the overall safety of their journey.