Garmin GPS III A Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Garmin GPS III A Owner's Manual Manual pdf 60 page image

The TracBack navigation feature allows you to retrace your path using the tracklog automatically stored in the receiver’s memory. This eliminates the need to manu-ally store waypoints along the way. A track log is an electronic breadcrumb trail,showing the path you have travelled. Your GPS III can be set to automatically recordtrack log points any time the receiver is on and locked onto satellites (see page 63).TracBack routes are created by reducing your track log into a route of up to 30waypoints and activating the new route in reverse order along those waypoints. Onceactivated, a TracBack route will lead you back to the oldest track log point stored inmemory, so it’s a good idea to clear the active track log at the beginning of your cur-rent trip (e.g., at the dock or trailhead), before you get started.To clear the active track log and define a starting point for a TracBack:1. Press MENU twice to display the Main Menu.2. Highlight ‘Track Logs’ and press ENTER.3. With the ‘Active Log’ highlighted press MENU to display the options list.4. Highlight ‘Clear Active Log’ and press ENTER.5. 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 on to automatically record track logpositions while under way. Refer to page 64 for more information on track log settings.2. Press MENU twice to display the Main Menu.3. Highlight ‘Track Logs’ and press ENTER.4. Highlight the desired track log (‘Active Log’ or ‘Saved Logs’) and press MENU todisplay the options list.5. Highlight ‘TracBack’ and press ENTER to create/activate the TracBack route. (Amessage box will appear while the GPS III analyzes the data and creates the route.)Clear the old track log beforeyou depart. This defines thestarting point for a TracBackroute.A TracBack route can also becreated from the GOTOOptions by pressing GOTO,followed by MENU.52REFERENCETracBack