Garmin G3X Pilot’s Guide 190-01115-00 Rev. K98Flight InstrumentsSystemOverviewFlightInstrumentsEISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesAFCSAnnun/AlertsAppendixIndexEnabling/disabling OBS Mode (with external GPS navigator config-ured):1) Press the OBS Key on the external navigator. The ‘Set OBS and Hold’ ActiveFlight Plan Page menu option is now available.2) Turn the FMS Joystick on the G3X to select the desired course to/from thewaypoint.Syncing to the current aircraft location (without external GPSnavigator):1) With OBS Mode enabled, press the OBS CRS Softkey or press XPDR/CRS> OBS CRS (if necessary).2) Press and hold the FMS Joystick.2.2 SUPPLEMENTAL FLIGHT DATAIn addition to the flight instruments, the PFD or PFD Page also displays varioussupplemental information, including the Outside Air Temperature (OAT), wind data,and Vertical Navigation (VNAV) indications.OUTSIDE AIR TEMPERATUREThe Outside Air Temperature (OAT) is displayed in degrees Fahrenheit (°F) or degreesCelsius (°C) in the lower left of the PFD or PFD Page.Outside Air Temperature on PFD Page (Split-Screen)Outside Air TemperatureChanging the outside air temperature setting:1) Press the MENU Key twice to display the Main Menu.2) Turn or move the FMS Joystick to highlight ‘System Setup...’ and press theENT Key.3) Turn or move the FMS Joystick to highlight ‘Units’ and press the ENT Key.
