Select Settings > System.

Display

Adjusts the backlight brightness and color scheme.

Beeper

Turns on and off the tone that sounds for alarms and selections.

GPS

Provides information about the GPS satellite settings and fix.

Auto Power

Turns on the device automatically when power is applied (Turning On the Chartplotter Automatically ).

Language

Sets the on-screen text language.

Speed Sources

Sets the source of the speed data used to calculate true wind speed or fuel economy. Water speed is the speed reading from a water-speed sensor, and GPS speed is calculated from your GPS position.

System Information

Provides information about the device and the software version.

Simulator

Turns on the simulator and allows you to set the speed and simulated location.