2-17190-01102-02 Rev. B Garmin G500 Pilot’s GuideForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8Glossary Appendix AAppendix BIndexNOTE: The ILS Localizer and Glideslope deviation indicators will indicatefull-scale deflection for the GNS 480 navigator at the second dot. The GNS400W/500W series navigators will indicate full-scale deflection at the edgeof the display.2.7.1 Changing CDI SourcesThe CDI can display two sources of navigation: GPS or NAV (VOR, and LOC).Color indicates the current navigation source: magenta (for GPS) or green (forVOR and LOC). The full-scale limits for the CDI are defined by a GPS-deriveddistance when coupled to GPS. When coupled to a VOR or localizer (LOC), theCDI has the same angular limits as a mechanical CDI. If the CDI exceeds themaximum deviation on the scale (two dots) while coupled to GPS, the crosstrackerror (XTK) is displayed below the white aircraft symbol.GPSNavigator 1VLOCNavigator 1GPSNavigator 2VLOCNavigator 2Figure 2-27 CDI Navigation Sources
