Garmin G3X Pilot’s Guide190-01115-00 Rev. K97Flight InstrumentsSystemOverviewFlightInstruments EISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeatures AFCS Annun/Alerts Appendix IndexOBS MODENOTE: If configured, the selected external GPS navigator (i.e., GTN or GNSSeries Units) is used to set the OBS Mode.Enabling Omni-bearing Selector (OBS) Mode suspends the automatic sequencingof waypoints in a GPS flight plan, but retains the current “active-to” waypoint as thenavigation reference even after passing the waypoint. ‘OBS’ is annunciated to the leftof the aircraft symbol when OBS Mode is selected.While OBS Mode is enabled, a course line is drawn through the “active-to” waypointon the moving map. If desired, the course to/from the waypoint can now be adjusted.When OBS Mode is disabled, the GPS flight plan returns to normal operation withautomatic sequencing of waypoints, following the course set in OBS Mode. The flightpath on the moving map retains the modified course line.Omni-bearing Selector (OBS) Mode (Split-Screen)Extended Course LineOBS CourseSoftkeyOBS Mode BoxOBS Mode AnnunciationEnabling/disabling OBS Mode (without external GPS navigator):1) From the Active Flight Plan Page press the MENU Key while navigating aflight plan or Direct-to.2) With ‘Set OBS and Hold’ highlighted, press the ENT Key. The OBS ModeBox 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, pressthe MENU Key, with ‘Release Hold’ highlighted, press the ENT Key.
