Chapter 4: AdditionalBasic Functions 41
Marks & Events
Chapter 4: Additional Basic Functions
4.1 Introduction
This chapter explains how to use some further basic functions available on the
chartplotter, using the dedicated keys and the menus.
To get the most out of your chartplotter, you should set up the basic data and
customize the display, as described in Chapter 6. Once you have explored the
display possibilities, you may wish to return to the customization and make
further changes (see Section 6.3).
This chapter covers the following topics:
• Using marks and events
• Recording and displaying track histories
• Man Overboard (MOB)
• Controlling alarms and timers
4.2 Marks and Events
The chartplotter allows you to place symbols to record marks or events. You
have a choice of 16 symbols that can be used for both marks and events.
Marks and events differ in the following ways:
• Marks are used to record features at the cursor position, such as fishing
buoys and anchorages. They are only graphical symbols, and you cannot edit
them or add information.
• Events are used to record features at your vessel’s current position, such as a
good fishing spot.
Events are special waypoints. The chartplotter assigns a unique identifier to
each event, in the format xxxEVT, where xxx is the next available number.
The events are stored in the waypoint list, and can be recalled and edited later
(see Chapter 5).
The Danger Zone mark (
) has an associated invisible exclusion zone around
it. You can specify the radius of the exclusion zone as part of your setup
procedure (see Section 6.2). For the first nine danger zones, if your vessel enters
the zone, an alarm will sound.
Note: The danger zone alarm is only available for the first nine danger zones.
Up to 1000 marks can be displayed on the screen at one time, and up to 1000
events or waypoints.
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