What is the standard high transmit power level for AIS?

What is the standard high transmit power level for AIS?

• A. 1 watt
• B. 6 watts
• C. 12.5 watts
• D. 25 watts

Answer: (C)

The standard high transmit power level for Automatic Identification System (AIS) is indeed 12.5 watts. This level is specified to ensure a robust and effective transmission of vessel information, particularly for Class A AIS devices, which are used on larger commercial vessels. The AIS operates by transmitting data regarding the vessel's location, course, speed, and other pertinent information to assist in navigational safety and collision avoidance. The 12.5-watt power level enables the AIS signals to reach other vessels and shore stations over a considerable distance, enhancing situational awareness in busy shipping lanes and crowded waters. It plays a crucial role in improving maritime safety by facilitating the exchange of navigational data among vessels. Lower power levels, such as 1 watt or 6 watts, are typically used for the Class B AIS devices, which are designed for smaller vessels and operate in less congested environments. Higher power settings, such as 25 watts, exceed the standard requirements and are not typically implemented as they may cause interference or unnecessarily congest the AIS frequency spectrum. Thus, the 12.5 watts is the correct and standardized power level for ensuring effective AIS communication in maritime operations.

The standard high transmit power level for Automatic Identification System (AIS) is indeed 12.5 watts. This level is specified to ensure a robust and effective transmission of vessel information, particularly for Class A AIS devices, which are used on larger commercial vessels.

The AIS operates by transmitting data regarding the vessel's location, course, speed, and other pertinent information to assist in navigational safety and collision avoidance. The 12.5-watt power level enables the AIS signals to reach other vessels and shore stations over a considerable distance, enhancing situational awareness in busy shipping lanes and crowded waters. It plays a crucial role in improving maritime safety by facilitating the exchange of navigational data among vessels.

Lower power levels, such as 1 watt or 6 watts, are typically used for the Class B AIS devices, which are designed for smaller vessels and operate in less congested environments. Higher power settings, such as 25 watts, exceed the standard requirements and are not typically implemented as they may cause interference or unnecessarily congest the AIS frequency spectrum. Thus, the 12.5 watts is the correct and standardized power level for ensuring effective AIS communication in maritime operations.