Operation Manual

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User Manual
5.6.5 CURSOR CONTROL
Enables (On)/disables (Off) the cursor control. The default setting is Off.
'MENU' + "ADVANCED SETTINGS" + 'ENTER' + "SIMULATION" + 'ENTER' +
"CURSOR CONTROL" + 'ENTER'
5.7 AIS MENU
AIS is an Automatic Identification System. It has been introduced to im-
prove the safety of navigation by assisting in the efficient operation of ship-to ship,
ship 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 in-
stalled 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 chart plotter an AIS receiver (please contact your local
dealer), vessels with AIS transponder within VHF range are displayed 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.
5.7.1 AIS SYSTEM DEFINITIONS
• Target
It is a vessel equipped with AIS. Information about the targets is being re-
ceived by AIS Receiver and displayed on the screen.
• CPA
Closest Point of Approach is the closest distance that will be achieved be-
tween 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.