Garmin GPSMAP 168 Sounder - Manual (Page 28)

17
Getting Started
Highway Page
The GPSMAP 168 Sounder’s Highway Page also provides graphic steering guidance to a destination
waypoint. As you head toward your destination, the middle of the screen provides visual guidance to
your waypoint on a moving graphic “highway.” Your present position is at the bottom center of the
highway display. The line down the middle of the highway represents your desired course. As you
navigate toward a waypoint, the highway will actually move—indicating the direction you’re off course.
To stay on course, simply steer toward the center of the highway or “keep it on the road.” The six
default data fi elds at the top of the page indicate Speed, Distance To your destination (or the next
waypoint in a route), ‘To Course’ (which shows the bearing to get you back on course), the distance
you are ‘Off Course’, Time To the Next waypoint, and the compass Track you are heading. Use the
Highway Page as your primary navigation page (in lieu of the Compass Page) when your main concern
is following a defi ned course.
When the GPSMAP 168 Sounder is in simulator mode, you can also adjust your speed and course
from the Highway Page using the ARROW KEYPAD. As you head toward each waypoint in the tour
route, try adjusting your boat speed and course to get a feel for how the highway works.
To adjust the simulated boat speed from the Highway Page:
1. Press the UP arrow of the ARROW KEYPAD to increase the speed in 10 knot/kph/mph increments.
Press the DOWN arrow to decrease the speed in the same increments.
To steer the boat:
1. Press the LEFT and RIGHT arrows of the ARROW KEYPAD.
Notice that as you get off course, the highway will move to give you graphic guidance to get
back on course. You can zoom IN or OUT on the highway display for a smaller or larger view. Five
available settings range from 1X to 16X, with a default setting of 8X. The current scale will appear
in the bottom right of the display.
To zoom in or out on the highway display:
1. Press either the IN or OUT key to increase or decrease the zoom scale.
Zoom Scale
Data Fields
Desired Course
Current
Waypoint
Present Position
168 Manual Part 1.indd 17 11/18/2002, 3:36:27 PM