Garmin GPSMAP 178 Owner's Manual page 37

General Tab
Detail— Most, More, Normal, Less, Least: controls how much map detail displays. Those features
which have a specified scale or turned "Off" are unaffected by this setting.
Orientation— North Up— fixes the top of the map display to a north heading; Track Up Below—
fixes the top of the map display to the current track heading and centers your position on the
lower portion of the screen. Set to 'Off; for constant Track Up. The numeric value is the range
the unit switches to North Up when zooming out. Course Up— fixes the map so the direction of
navigation is always "up" and turns the navigation leg line vertical on the screen.
AutoZoom— On/Off: when "On" the map automatically adjusts the map scale to a lower scale as
you approach you destination point.
Color Mode — (178C) For Sun, For Dark: (178) Water Mode, Land Mode
Source Tab
Basemap— On/Off: turns the built in base map on or off.
Data Card Maps— On/Off: turns all optional BlueChart/MapSource data loaded on the data card
on or off. The 'Data Card Maps' option box shows a list of the optional BlueChart/MapSource
data loaded on the data card. Each area is described by name and may be deselected if you do not
wish to display the data on the Map Page.
To display the Map Information Page:
1. Highlight the 'Data Card Maps' option box and press ENTER.
2. Use the ARROW KEYPAD to scroll through the list of maps.
3. To select/deselect a map family, highlight the check box to the left of the name and press ENTER to
select/deselect the map. The map is selected and is displayed on the Map Page when an "" appears
in the box adjacent to that map. You may also press MENU and choose to 'Show All' or 'Show None'
and press ENTER.
4. To display detailed information/notes for each area or to turn individual maps in the family on/off,
highlight the family name and press ENTER. To view the notes for that area, choose 'Show Notes'.
To scroll through the notes, you may either highlight the notes, press ENTER and use the ARROW
KEYPAD to scroll UP, DOWN, LEFT and RIGHT or press MENU and choose the desired scroll option.
Reference
Map Page Options
General Tab
Source Tab
'Data Card
Maps' Map
Information
Page