14. AIS

AIS is an Automatic Identification System. It has been introduced to improve the safety of navigation by assisting in the efficient operation of ship-to-ship location reporting and VTS applications. The system should enable operators to obtain information from the ship automatically, requiring a minimum of involvement of ship’s personnel, and should have a high level of availability. AIS transponders installed on IMO vessels use VHF frequencies to:

♦ Transmit details of their own vessel

♦ Receive details from other vessels or navigation aids within VHF range.

Information being transmitted from vessels over 300 tons that, due to recent worldwide legislation, are required to fit Class “A” AIS transponders.

Connecting to the GPS Chart Plotter an AIS receiver (please contact your local dealer), will display vessels with AIS transponder within VHF range on screen giving the skipper or navigator a visual interpretation of the data of nearby vessels. This improves safety, and specifically for collision avoidance reasons.

14.0AIS SYSTEM DEFINITIONS

♦Target: It is a vessel equipped with AIS. Information about the targets is being received by AIS Receiver and displayed on the screen.

♦CPA : Closest Point of Approach is the closest distance that will be achieved between your vessel and the tracked target, based on your vessel’s speed and direction and the target’s speed and direction.

♦CPA Limit: This is the distance from your vessel that a target may reach before a target is deemed a threat.

♦CPA Alarm: Occurs if CPA is less or equal to CPA Limit. This test is done for active targets only.

♦TCPA: Time to closest Point of Approach is the time remaining until the CPA will occur.

♦TCPA Limit: This is the time remaining before the CPA is reached.

♦TCPA Alarm: Occurs if TCPA is less or equal to TCPA Limit. This test is done for active targets only and if CPA value is less or equal to CPA Limit.

♦Radio Call Sign: International call sign assigned to vessel, often used on voice radio.

♦Name: Name of ship, 20 characters.

♦MMSI: Maritime Mobile Service Identity.

♦MMSI number: A unique 9 digit number that is assigned to a DSC radio sta- tion. It primarily registers the boat information in the U.S. Coast Guard’s na- tional distress database for use in emergency situations.

♦Active Target: Target located within the Activation Range. Active target is rep- resented by oriented triangle with COG and Heading vectors. Rate of turn may also be displayed.

♦Dangerous Target: Target detected by CPA or TCPA Alarm. Dangerous target is Active Target by definition. For better visibility Dangerous Target symbol is flashing.

♦Sleeping Target: Target located outside the Activation Range. Sleeping target is represented by a small oriented triangle.

♦Lost Target: When the AIS info is not received from that vessel for 3.5 min-

GPS Chart Plotters

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Standard Horizon CP180 owner manual Ais, AIS System Definitions
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CP180 specifications

Standard Horizon is well known for its innovative marine electronics, particularly its line of chart plotters and multifunction displays. Among its popular products are the CPV550, CP500, CP180I, CP180, and CP300 models, each designed to enhance navigational experience for boaters and sailors.

The Standard Horizon CPV550 is a cutting-edge chart plotter that features a bright, high-resolution 5.5-inch color display. This model supports Navionics and C-MAP charts, ensuring users have access to high-quality cartography. Its built-in GPS receiver offers exceptional accuracy and fast position fixes, while its user-friendly interface allows for easy navigation through menus and functions. The CPV550 is equipped with a variety of connectivity options, including NMEA 0183, allowing for seamless integration with other onboard electronics.

The CP500 is another robust option, featuring a 5-inch display and advanced GPS technology. This model is designed for ease of use, with a straightforward interface that appeals to both novice and experienced users. It offers real-time tracking and position monitoring, making it ideal for coastal cruising and fishing. The CP500 supports various cartography formats, providing flexibility for users who prefer different map sources.

Moving on, the CP180I model stands out with its innovative integrated design, packing a 7-inch display and multiple advanced features into a compact unit. It includes built-in Wi-Fi, allowing users to connect their mobile devices and access updates or weather information directly from the display. The CP180I is also compatible with a wide range of NMEA 2000 devices, offering greater customization options for boaters looking to expand their electronic setups.

The CP180 offers similar capabilities but focuses on a slightly larger 8-inch screen. This model enhances visibility and provides an intuitive experience with its touch-screen interface. It supports various navigation modes and features such as AIS overlay and radar integration, which significantly improve situational awareness on the water.

Finally, the Standard Horizon CP300 is a versatile chart plotter that combines advanced features with exceptional user-friendliness. This model features a 9-inch display that offers crisp visuals and enhanced readability even in bright sunlight. It also stands out for its robust integration capabilities with other marine instruments. The CP300 includes built-in Bluetooth and Wi-Fi, allowing for wireless data sharing and connectivity with smart devices.

Overall, the Standard Horizon line of chart plotters, including the CPV550, CP500, CP180I, CP180, and CP300, offers advanced technological features, reliable performance, and user-friendly interfaces, making them excellent choices for both leisure and professional mariners alike. With a focus on connectivity, visibility, and customizable options, these devices enhance the navigation experience on the water.
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