Garmin GPS 12XL Owner's Manual (Software Version 4.0 and above) - Page 21

Marking a Position The GPS 12XL allows you to mark and store up to 500 positions as waypoints. A waypoint can be entered by taking an instant electronic fix, by manually entering coordinates (pg. 20), or by using the bearing and distance to a known position (pg. 20). To mark your present position: 1. Press . The mark position page will appear, showing the captured position and a default threedigit name. 2. To save a default name and symbol, press to confirm the 'SAVE?' prompt. Position Averaging Function The GPS 12XL positioning averaging function will help reduce the effects of selective availability upon position error when marking a waypoint, providing more accurate saved positions. 1. After you have pressed the key, highlight the 'AVERAGE?' field and press . The Figure of Merit (FOM) field will display a value reflecting estimated accuracy of the averaged position. Note: As the GPS 12XL calculates the FOM, it will rapidly change initially then begin to stabilize over time. 2. The unit will continue averaging until you have highlighted 'SAVE?' and pressed . To enter a different waypoint name: 1. Highlight the waypoint name field, and press . 2. Make the appropriate changes, and press . 3. Highlight 'SAVE?', and press . Note: To enter a different waypoint symbol or comment, see pg. 21. To add this waypoint to a route: 1. Highlight the 'Add to route number' field, and press . 2. Enter a route number, press to confirm the route number, and again to save the waypoint. The waypoint will be added to the end of the selected route-after any other waypoints already in the route. REFERENCE Position Averaging After initiating the position averaging function, a Figure of Merit value will be displayed, and the 'SAVE?' field will automatically be highlighted. The GPS 12XL will save new waypoints with a default three-digit name. To add the waypoint to a route, enter the desired route number, highlight 'SAVE?' and press ENTER. 17