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Chapter 3: Operation 3-1
Chapter 3: Operation
3.1 Introduction
This chapter explains how to use the chart functions to navigate with your
RayChart 420. It covers the following topics:
• Controlling waypoints; placing, moving, editing and deleting waypoints
• Working with routes; creating a new route, managing routes using the route
database and editing routes
• Going to waypoints and following routes
• Changing display modes
• Transferring waypoints and routes
• Using tracks; track set up, showing current track and converting a track to a
route (SmartRoute)
• Man Overboard
• Alarms
Safety
The RayChart 420 makes it very easy to mark a waypoint and travel towards it.
However, you should always check first that the route is safe. If you are using
the chartplotter in combination with an autopilot connected via NMEA, the
autopilot will normally prompt for confirmation before it steers the vessel
towards the waypoint.
If you have entered your route using a small-scale chart, zoom in to a larger
scale to check for hazards, such as small shoals, that may not be shown on the
smaller scale charts.
Note: Until you are familiar with interpreting the chart display, you should take
every opportunity to compare the displayed objects with visual targets, such as
buoys and coastal structures. You should practice harbour and coastal
navigation during daylight and in clear weather conditions.
The equipment should not be used as a substitute for good navigational
practice.
3.2 Working with waypoints
Introduction
The RayChart 420 enables you to place up to 500 waypoints. A waypoint is a
position entered on a chart as a reference or destination point. All waypoints
placed on the chartplotter are stored in a waypoint database list which includes
symbol, position, bearing, range, date and time.