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48 GPSMAP 188/188C Sounder Owner’s Manual
MAIN MENU > POINTS TAB
Celestial Tab Menu
To change the time or date:
1. From the Celes tab, use the ROCKER to highlight the date
or time, and press ENTER.
2. Enter a new date or time, and press ENTER.
To use current date and time:
From the Celes tab, press MENU, use the ROCKER to
highlight Use Current Date and Time, and press ENTER.
Points Tab
The Main Menu Points tab features two waypoint sub tabs, User
and Proximity, that manage a large number of waypoints quickly
and efficiently. The sub tabs also provide a continuously updated
proximity waypoint alarm function that can be used to define an
alarm circle around items such as submerged hazards or shallow
waters.
Main Menu
Tabs
Sub Tabs