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68 GPSMAP 176/176C Owner’s Manual
MAIN MENU > MAP TAB
Other Tab
• Railroad—Auto, Off, 20 ft-800 mi: sets the maximum range at
which railroads appear on the screen.
• Accuracy Circle—On/Off: toggles the circle On and Off. The
circle represents the approximate accuracy of the unit based on
EPE, DOP, and basemap quality. Your position is within
the circle.
• Lock to Roads—On/Off: This feature is only available if
MapSource MetroGuide or City Navigator data is loaded.
When the feature is active, the triangle icon locks to the road
that you are traveling.
• Map Outlines—On/Off: toggles the coverage boxes for
BlueChart/MapSource data On and Off.
Setup Map Menu Options
From the Map Setup page (Map tab of the Main Menu), the following
options are available by pressing MENU: Defaults, All Map Defaults,
and Data Card Information.
To restore defaults for map settings:
1. From the Map setup page, highlight the desired tab or setup
feature you want to restore settings for and press MENU.
2. Highlight Defaults (highlight All Map Defaults if you want all
tabs restored) and press ENTER.
Data Card Information Screen Options