Garmin G3X Pilots Guide - Page 285

System Overview Flight Instruments EIS CNS Interface GPS Navigation Flight Planning Integrated Autopilot 3) G3X: While GPS is still the selected navigation source on the external navigator, press the AP APPR Softkey to arm LOC and GS (Glideslope) Modes even with GPS Mode still active. The external navigator will switch from GPS to VLOC automatically and the G3X will capture the localizer and then the glideslope. If Navigation Mode is active and either of the following occur, the Integrated Autopilot reverts to Roll Hold Mode (wings rolled level): • Different VOR tuned while in VOR Navigation Mode (VOR Navigation Mode reverts to armed) • Active navigation source manually switched (with the CDI SRC Softkey on the PFD/PFD Page, or the CDI Key on the external navigator) • Active flight plan is deleted (only GPS-based modes) • GPS reception is lost If VOR Navigation Mode is active and the VOR signal is lost, the Integrated Autopilot reverts to Roll Hold Mode (wings rolled level) and reverts VOR Mode to armed in the event the VOR signal is reestablished. OBS MODE In OBS Mode the Selected Course is controlled using the OBS CRS Softkey. Or press XPDR/CRS > OBS CRS when a transponder is configured. Enabling/disabling OBS Mode (without external GPS navigator): 1) From the Active Flight Plan Page, press the MENU Key while navigating a flight plan or Direct-to. 2) With 'Set OBS and Hold' highlighted, press the ENT Key. The OBS Mode Box is highlighted. 3) Turn the FMS Joystick to select the desired course to/from the waypoint. 4) To cancel OBS Mode and return to automatic waypoint sequencing, press the MENU Key, with 'Release Hold' highlighted, press the ENT Key. Enabling/disabling OBS Mode (with external GPS navigator configured): 1) EXTERNAL NAVIGATOR: Press the OBS Key. The 'Set OBS and Hold' Active Flight Plan Page menu option is now available. Hazard Avoidance Additional Features Integrated Autopilot Annun/Alerts Appendix Index 190-01115-00 Rev. F Garmin G3X Pilot's Guide 267