55portion of the GPS V and is best suited for indoor use (e.g., learning to use the GPS Vor creating manual routes). The GPS V cannot be used for navigation guidance whenoperating in Demo Mode.The Battery setting is used to designate the type of batteries currently being use topower your GPS V: Alkaline or Lithium. This setting ensures accurate readings fromthe battery level indicator.The Backlight setting determines how long the backlighting will remain on afterthe last keypress. Automatic shutoff times from 15 seconds to 2 minutes are available.Select ‘Always On’ for continuous backlight operation.You can view the GPS V’s Display in horizontal (‘Landscape’) or vertical (‘Portrait’)orientation. The display can also be changed by pressing and holding the PAGE key.Beeper tones can be turned off, sound only for on-screen messages, or sound formessages and when keys are pressed.Wide Area Augmentation System (WAAS) capability improves position accuracy inyour GPS. When enabled, this feature searches for a WAAS satellite near your locationand then receives differential data for correcting the GPS satellite signals. When WAASis enabled, you will see WAAS satellite numbers, beginning at 33 or above, displayedon the Satellite Status Page. When correction data is received, a “D” will appear in theSatellite Status Page signal bars for all applicable satellites. To learn more about WAAS,access the Federal Aviation Administration web site (www.gps.faa.gov) for a comprehen-sive description and links to detailed information. NOTE: Processor-intensive func-tions, such a automatic route calculations, will run considerably slower when WAAS isenabled. If you experience significant operational delays, disable the WAAS feature.To change a System Setup Page feature:1. Follow the steps on page 54 to select the System Setup Page.2. Use the ROCKER KEYPAD to highlight the feature you wish to change and pressENTER. A pop-up window will appear with selections for that feature.3. Use the ROCKER KEYPAD to highlight the desired setting and press ENTER.Main Menu: SetupUse the ‘Display’ setting to change screenorientation between Landscape and Portrait.Or, press and hold the PAGE key.Change the backlight timeout from theSystem Setup Page’s ‘Backlight’ field. Select‘Always On’ for continuous backlighting.NOTE: When using external power the back-lighting will remain on continuously regard-less of the ‘Backlight’ setting.Reference