Garmin G3X Pilot’s Guide 190-01115-00 Rev. K128CNS InterfaceSystemOverviewFlightInstrumentsEISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesAFCSAnnun/AlertsAppendixIndexALTITUDE MODE (AUTOMATIC OR MANUAL)Altitude Mode is automatically selected when the aircraft becomes airborne. AltitudeMode may also be selected manually by pressing the ALT Softkey.If Altitude Mode is selected, a green ALT indication and transponder code appearin the mode field of the Transponder Data Box, and all transponder replies requestingaltitude information are provided with pressure altitude information.REPLY STATUSWhen the transponder sends replies to interrogations, a white R indication appearsmomentarily in the Transponder Data Box.ENTERING A TRANSPONDER CODEEntering a transponder code:1) From the full-screen PFD and/or split-screen PFD Page, press the XPDRSoftkey.2) Press the CODE Softkey. A Transponder Code Box appears with the cursoron the first digit in the code.3) Enter the desired code using the FMS Joystick and press the ENT Key.Transponder Code Entry (Split-Screen PFD Page)CODESoftkeyTransponderCode Entry
