Garmin GPS III Pilot - Manual (Page 72)

The TracBack navigation feature allows you to retrace your path using the track
log automatically stored in the receiver’s memory. This eliminates the need to manual-
ly store waypoints along the way. A track log is an electronic breadcrumb trail show-
ing the path you have travelled. Your GPS III Pilot can be set to automatically record
track log points anytime the receiver is on and locked onto satellites (see page 74).
TracBack routes are created by reducing your track log into a route of up to 30
waypoints and activating the new route in reverse order along those waypoints. Once
activated, a TracBack route will lead you back to the oldest track log point stored in
memory, so it’s a good idea to clear the existing track log at the beginning of your cur-
rent trip (e.g., at your home airport) before you get started.
To clear the track log and define the starting point for a TracBack route:
1. Press MENU twice to display the Main Menu.
2. Highlight ‘Track Log’ and press ENTER.
3. Highlight ‘Clear Log’ and press ENTER.
4. Press ENTER to delete the track log data (or press QUIT to cancel).
To create and activate a TracBack route:
1. Enable track log recording and leave the GPS III Pilot on to automatically record track
log positions while under way. Refer to page 74 for information on track log settings.
2. Press MENU twice to display the Main Menu.
3. Highlight ‘Track Log’ and press ENTER.
4. Highlight ‘TracBack’ and press ENTER to create/activate the TracBack route. (A
message box will appear while the unit analyzes the data and creates the route.)
Clear the old track log before
you depart. This defines the
starting point for a TracBack
route.
‘TracBack’ can also be initiat-
ed from the Main Menu’s
‘Track Log’ option.
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REFERENCE
TracBack
GPS III Pilot B2 4/1/99 2:02 PM Page 64