Garmin GPS 12CX Owner's Manual

Also see for GPS 12CX: Specifications

Garmin GPS 12CX Owner's Manual Manual pdf 30 page image

22Using the Highway PageThe GPS 12CX’s Highway Page provides graphicsteering guidance to a destination waypoint, with a greateremphasis on the straight-line desired course and the dis-tance and direction you are off course. The bearing anddistance to a waypoint—along with your current track andspeed—are displayed at the top of the screen.As you head toward your destination, the middle ofthe screen provides visual guidance to your waypoint ona moving graphic “highway.” Your present position is rep-resented by the diamond in the center of a course devia-tion indicator (CDI) scale. The line down the middle ofthe highway represents your desired track. As you navi-gate toward a waypoint, the highway will actually move—indicating the direction you’re off course—relative to theposition diamond on the CDI scale. When the highway ispointing straight up the screen, the waypoint is directlyahead. If the destination waypoint is to the left, the top ofthe highway will lead to the left, and vice versa. To stayon course, simply steer in the direction the highway leads(left or right) until the highway leads straight up the page.If you do get off the desired course by more than 1/5th of the selected CDI range, the exact distance youare off course will be displayed where the CDI scalesetting normally appears. If you get too far off course(the highway has disappeared off either side of the high-way display), a message box will appear to indicatewhat course to steer to get back on course. (For infor-mation on how to set this scale, see pg. 40.) As youapproach a waypoint, a horizontal “finish line” willmove toward the bottom of the highway. When thefinish line reaches the CDI scale, you’ve arrived at yourdestination.Distance toWaypointSpeed OverGroundCDI ScaleUser Selectable FieldBearing toWaypointTrack OverGroundDestinationWaypointGraphicHighwayREFERENCEUsing theHighway PageThis example indicates that youare off course to the left and needto steer right to get back oncourse. Coutinue turning in thedirection of the highway until thehighway is pointing straight up,then continue in that direction.If you get too far off course, a mes-sage box will appear indicating acourse to ‘STEER’ to get back onthe most efficient course.