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Chapter 3: Standard Chart Operations 3-37
Using Tracks
3.7 Using Tracks
The Track function is used to mark on-screen the trail that your vessel has
followed, as if it had left a visible fixed wake.
While the track is switched on it is recorded in the display unit’smemory.You
specify the interval at which track points are made and a line is drawn on-
screenbetween eachpoint. Up to 4500 trackpoints canbe saved in total: inthe
current track and in up to 5 track files (each a maximum of 750 points). The
current track remains on-screen, even following a power off/on, until you
clear the track.
Breaks in the track will be caused when any of the following occur for longer
than the specified track interval: the track is switched off then on; the position
fix is lost; the display unit is switched off.
To enable you to follow this track on your return voyage, the SmartRoute
function converts the track (or the last segment of a track with breaks) into a
route which is automatically reversed, see SmartRoute on page 3-41.
A track can be saved and retrieved for display at a later date. You can only
display one track at a time; you must clear a current track from the screen if
you want to display a saved track.
This section describes:
• Setting up a track, including how to specify the interval.
• Clearing the current track.
• Managing tracks, using the track list, including Saving, Naming, Erasing
and Showing a track.
• Making a Track into a Route
➤ To access the track controls:
1. From the chart display, press the MENU key to display the chart set upsoft
keys.
2. Press the TRACK SETUP soft key to display the Track soft keys:
The following instructions assume you have the track soft keys displayed.
D4162-1
SYSTEM
SET UP¬
CHART
SET UP¬
TRACK
SET UP¬
GPS
SETUP¬
D5674-1
TRACKS
OFF ON
CLEAR
TRACK
MAKE INTO
ROUTE
MORE¬