Using Tracks - Raymarine SL72 Owner's Handbook Manual

5-38

5.7 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's memory. You
specify the interval at which track points are made and a line is drawn on-
screen between each point. Up to 4500 track points can be saved in total, 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 5-42.
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 up soft
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.
SL72 & SL72RC PLUS Pathfinder Radar & Radar/Chartplotter
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