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Trackline Extension window are two check boxes (Show Time and Show Dis-
tance) which allow you to turn on or off the time and/or distance settings.
To set trackline extension: From the Map Page, press
MENU|↓ to MAP
DATA|ENT. Press ↓ to TRACKLINE EXTENSION|ENT. Use ↑ ↓ to select the desired
distance setting and press
ENT.
Presentation Mode
From the Map Page, press
MENU|↓ to MAP DATA|ENT. Press ↓ and → to
PRESENTATION MODE|ENT. Use ↑ ↓ to choose the desired depth and press ENT.
Presentation Mode gives you some control over the map layout by allow-
ing you to choose between US and International Modes.
Safety Contour
From the Map Page, press
MENU|↓ to MAP DATA|ENT. Press ↓ and → to
SAFETY CONTOUR|ENT. Use ↑ ↓ to choose the desired depth and press ENT. The
SAFETY CONTOUR command allows you to modify depth contours on a navionics
map for water less than 10 meters deep. Based on your preferences, the
depth contours will be colored or shaded to make it easier to identify shallow
areas. Keep in mind the size of your ship's keel when determining which
option is right for your vessel.
Map Overlays (Range Rings; Lat/Long Grid)
The map screen can be customized with four range rings and/or grids that
divide the plotter into equal segments of latitude and longitude.
Range rings are handy for visually estimating distances on the map. The ring
diameters are based on the current zoom range. For example: at the 100-mile
zoom, the screen will show two rings with your current position in the center.
The large ring touching the left and right sides of the screen is 100 miles in
diameter (same as the zoom range). The second smaller ring is 50 miles in di-
ameter (always 1/2 the zoom range).
The distance from your current position to the smaller ring (the ring's ra-
dius) is 25 miles (always 1/4 the zoom range). With the arrow keys and map
cursor, you can scroll the map to see the third and fourth rings. In this ex-
ample, the distance to the third ring is 75 miles and distance to the fourth
ring is 100 miles from your current position.
To set range rings: From the Map Page, press
MENU|↓ to MAP DATA|ENT.
Press
↓ to RANGE RINGS. With the option highlighted, press ENT to check it (turn
on) and uncheck it (turn off). After the option is set, press
EXIT|EXIT to return
to the page display.
To set Lat/Long Grid: From the Map Page, press
MENU|↓ to MAP
DATA|ENT. Press ↓ to LAT/LON GRID LINES. With the option highlighted,
press
ENT to check it (turn on) and uncheck it (turn off). After the op-
tion is set, press
EXIT|EXIT to return to the page display.