Garmin G3X Pilot’s Guide 190-01115-00 Rev. J116CNS InterfaceSystemOverviewFlightInstrumentsEISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesIntegratedAutopilotAnnun/AlertsAppendixIndexCODE Returns to top-level softkeysVFR The pre-programmed VFR code is automaticallydisplayed in the code field of the Transponder DataBox. Pressing the VFR softkey again restores theprevious identification code.BACK or DONE Returns to top-level softkeysMODE Softkey selectedSTBY Selects the standby mode. When in standby mode, theremote transponder will not reply to any interrogations.Press and hold to put the transponder in Ground(GND) Mode. Ground Mode is normally selectedautomatically when the aircraft is on the ground.ON Generates Mode A and Mode S replies, but Mode Caltitude reporting is inhibited.ALT Selects ALT Mode. All transponder replies requestingaltitude information are provided with pressurealtitude information.SET ID Allows the pilot to set the Flight ID. (The Flight ID mustbe configured to ‘Set By Pilot’ for the SET ID softkeyto be displayed).BACK Returns to previous level softkeysTRANSPONDER MODE SELECTIONThe transponder mode will automatically switch between GND Mode and ALT Mode.The mode can also be manually set using the softkeys.Selecting a transponder mode:1) From the full-screen PFD and/or the split-screen PFD Page, press the XPDRSoftkey.2) Press the MODE Softkey.3) Press the desired mode softkey (STBY / GND, ON, or ALT). Pressing andholding the STBY Softkey activates Ground (GND) Mode and the STBYSoftkey becomes the GND Softkey.
