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Chapter 3: Operation
Chapter 3: Operation
3.1 Introduction
This chapter explains how to use the chart functions to navigate with the
Raychart 425.
Safety
The Raychart 425 makes it very easy to mark a waypoint and travel
towards it. However, always check first that the route is safe. If 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 a route has been entered using a less detailed chart, zoom in for more
detail to check for hazards, such as small shoals, that may not be shown
on the less detailed charts.
Note: Until you are familiar with interpreting the chart display, you
should take every opportunity to compare the displayed objects with vi-
sual 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 425 enables up to 500 waypoints to be placed. 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.
All waypoints in the database are displayed on screen, unless the SHOW
WAYPOINTS is set to OFF in the Chart Set Up menu, as described in
Chapter 4. A waypoint can be selected, either on-screen or from the list,
for editing.
The waypoint is usually placed at the cursor position and can be part of a
route; A waypoint can also be placed at the vessel's current position.
Waypoints can be placed before the chartplotter is installed on your
vessel.
When a new waypoint is placed, it is displayed using either the default
symbol of a cross or an alternative symbol available from the Chart Set
3-1
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