The GPS III’s Main Menu provides access to additional pages (submenus) that areused to create or edit waypoints, create routes, list nearby waypoints, review trip infor-mation and timers or make changes to system settings. These six pages are divided intocategories by function. The waypoint and route management features of the MainMenu are described in more detail in the Reference section of this manual. Let’s take alook at the Main Menu and one of its submenu items.To view the Main Menu:1. Press the MENU key twice.To select a submenu item from the Main Menu:1. Highlight the desired item using the rocker keypad, and press ENTER.2. To return to the Main Menu, press QUIT.The ‘Setup’ option provides a list of choices (presented as a series of ‘file tabs’) toperform various configuration settings including system settings, selection of positionformat and units of measure, time display, setting various alarms, enabling the built-insimulator feature and interface options with other equipment:To change units of measure for distance and speed:1. Select the ‘Setup’ option from the Main Menu (as described above), and press ENTER.2. Highlight the ‘Units’ tab with the rocker keypad. The units settings are automaticallydisplayed.3. Highlight the ‘Distance & Speed’ field using the rocker keypad, and press ENTER.A pop-up menu appears showing the available options.4. Select the desired option using the rocker keypad, and press ENTER.The Main Menu providesaccess to six additional (sub-menu) pages.The ‘Setup’ option provides alist of menu choices to per-form various configurationsettings, such as changingunits of measure for distanceand speed. 13GETTING STARTEDMain Menu