Lat/Lon Grid; Navaids On Bird's Eye View; Chart Select; Set Simulation Position (Advanced) - Humminbird 688ci HD DI Operation Manual

Lat/Lon Grid allows you to display or hide a grid showing latitude and longitude
lines.
Navaids on Bird's Eye View allows you to display or hide additional
navigational aids in Bird's Eye View, such as lights and buoys.
NOTE: You will see more navigational aids with an optional-purchase SD card.
Chart Select allows you to choose which chart to use if you have built-in charts
or a map card. If you select Auto, your unit will select a chart automatically.
Set Simulation Position allows you to set the position of the boat used in the
Simulator. Press any arrow on the 4-WAY Cursor Control key to activate the
cursor and move it to the coordinates where you want to start the simulation.
Then confirm the position using the Set Simulation menu setting.
NOTE: The cursor must be active in order for this procedure to work. If the
cursor was not active before you began this procedure, an error message will
appear. Exit the menu, set the cursor, then try again.

Lat/Lon Grid

Settings: Hidden, Visible; Default = Hidden

Navaids on Bird's Eye View

Settings: Hidden, Visible; Default = Visible

Chart Select

Settings: Various, Default = Auto
Set Simulation Position
(Advanced)
Settings: Press the RIGHT Cursor key and follow screen
instructions to activate.
135 Chart Menu Tab