Humminbird 700 SERIES 786CI - Manual (Page 101)

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Map Datum
(Advanced)
Map Datum allows you to change the map coordinate system used by the
Chartplotter to match those of a paper map. The Map Datum menu option is
available when User Mode is set to Advanced (see Main Menu: User Mode).
To change the Map Datum setting:
1. Make sure the User Mode is set to Advanced, then highlight Map
Datum on the Navigation main menu.
2. Press the LEFT or RIGHT Cursor keys to change the Map Datum setting.
(Default = WGS 84)
Course Projection Line
Course Projection Line allows you to display or hide
an arrow extending from the bow of the boat that projects your current course, and
shows where the boat will go if you continue on your present course.
To change the Course Project Line setting:
1. Highlight Course Projection Line on the Navigation main menu.
2. Press the LEFT or RIGHT Cursor keys to change the Course Projection
Line setting. (Hidden, Visible, Default = Visible)
Navigation Menu Tab