Garmin G3X Pilot’s Guide190-01115-00 Rev. G 73Flight InstrumentsSystemOverviewFlightInstruments EISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesIntegratedAutopilot Annun/Alerts Appendix IndexHSI ANNUNCIATIONSNOTE:Some or all HSI annunciations may appear in the four quadrants of theG3X HSI depending on the external navigator(s) configured (i.e., SL30 Nav/Comm Transceiver and/or the GTN or GNS Series Units).HSI AnnunciationsNavigationSource: GPSor NAV (VOR,Localizer)LOI, VFR,REV, MSG,or INTVFR CDI scaleFlight PhaseOBS‘1’ or ‘2’ will appearafter the Naviga-tion Source if morethan one externalnavigation source isconfigured.LOI: Loss of GPS integrity.VFR: An external GPS source isconfigured but there is not enoughguidance data for IFR use.REV: External Navigation Sourcefailed. Reverted to internal VFRGPS for navigation.MSG: External navigation sourcehas a pending messageINT: The pilot has elected touse the internal GPS navigationsource instead of the external GPSnavigation source.VFR CDI Scales:0.25nm, 1.25nm,5.00nmFlight Phase(IFR): APR, TERM,ENR, OCN, LNAV,L/VNAV, LNAV+V,or LPVBEARING POINTERS AND INFORMATION WINDOWSTwo bearing pointers and associated information can be displayed on the HSI forNAV (VOR, Localizer) and GPS sources as well as nearest airports. The bearing pointersare light blue and are single-line (Bearing Pointer 1) or double-line (Bearing Pointer2). A pointer symbol is shown in the information windows to indicate the navigationsource. The bearing pointers never override the CDI and are visually separated from theCDI by a white ring (shown when the bearing pointers are selected but not necessarilyvisible due to data unavailability).