How does the symbol for an AIS sleeping target compare to that of an activated target?

How does the symbol for an AIS sleeping target compare to that of an activated target?

• A. They are equal in size
• B. Sleeping targets are larger
• C. Sleeping targets are smaller
• D. They have different colors

Answer: (C)

The symbol for an AIS sleeping target is smaller than that of an activated target. This differentiation in size visually indicates the status of the ship's AIS transponder. An activated target has its AIS transponder broadcasting regularly, which is essential for real-time monitoring and collision avoidance. Conversely, a sleeping target's AIS is not actively broadcasting, suggesting that the vessel may be stationary, turned off, or not in use, hence needing a smaller symbol. This helps navigators quickly assess the status of vessels in the vicinity on their charts. The various symbols and their sizes enhance situational awareness without overcrowding the display. The other factors, such as color or size being equal, do not accurately reflect the purpose these symbols serve in maritime navigation.

The symbol for an AIS sleeping target is smaller than that of an activated target. This differentiation in size visually indicates the status of the ship's AIS transponder. An activated target has its AIS transponder broadcasting regularly, which is essential for real-time monitoring and collision avoidance. Conversely, a sleeping target's AIS is not actively broadcasting, suggesting that the vessel may be stationary, turned off, or not in use, hence needing a smaller symbol. This helps navigators quickly assess the status of vessels in the vicinity on their charts. The various symbols and their sizes enhance situational awareness without overcrowding the display. The other factors, such as color or size being equal, do not accurately reflect the purpose these symbols serve in maritime navigation.