190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
67
FLIGHT INSTRUMENTS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EIS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
OBS MODE
NOTE: VNV is inhibited while automatic waypoint sequencing has been suspended.
EnablingOmni-bearingSelector(OBS) Modesuspendstheautomatic sequencingofwaypointsin aGPS
ightplan(GPSmust betheselectednavigation source),butretainsthecurrent Active-towaypointasthe
navigationreferenceevenafterpassing thewaypoint.OBSis annunciatedtothelowerright oftheaircraft
symbol when OBSModeisselected.
WhileOBS is enabled, a course line is drawn through the active-to waypoint on the moving map. If
desired,thecourseto/fromthewaypointcannowbeadjusted.WhenOBSModeisdisabled,theGPSight
planreturnstonormaloperation,withautomaticsequencing ofwaypoints,followingthecoursesetinOBS
Mode. The flight plan on the moving map retains the modified course line.
Figure 2-26 Omni-bearing Selector (OBS) Mode
Pressing the
OBS
Softkey Again
Disables OBS Mode
Extended
Course
Line
GPS
Selected
OBS Mode
Enabled
Pressing the
OBS
Softkey Enables
OBS Mode
Enabling/disabling OBS Mode while navigating a GPS flight plan:
1) Press the OBS Softkey to select OBS Mode.
2) Turn the CRS Knob to select the desired course to/from the waypoint. Press the CRS Knob to synchronize the
Selected Course with the bearing to the next waypoint.
3) Press the OBS Softkey again to return to automatic waypoint sequencing.