Map Tab; General Sub Tab; Source Sub Tab - Garmin GPSMAP 198C Owner's Manual

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Map Tab

The Map tab changes the show properties of the Map Page.
The following pages contain descriptions of the Map tab's eight
sub tabs.

General Sub Tab

• Detail—Most, More, Normal, Less, Least: controls how
much map detail is shown. This setting only applies to map
features set to Auto. Features that have a specified zoom
range or are turned off are unaffected by this setting.
• Orientation—North up: fixes the top of the Map Page to
a north heading. Track up: fixes the top of the Map Page to
the current track heading. Course up: fixes the map so the
direction of navigation is always up.
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• AutoZoom—On, Off: when On the map automatically
adjusts the map zoom range to a lower range as you
approach you destination point.
• Color Mode—For Sun, For Dark: controls colors change to
correct for day and night lighting conditions.

Source Sub 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 can be deselected if you do
not want to show the data on the Map Page.
GPSMAP 198C Sounder Owner's Manual