From the main menu, select Setup > System.

System Mode

Sets the satellite system to GPS, GPS + GLONASS, or Demo Mode (GPS off).

Usage Mode

Sets the device to operate in Marine or Automotive mode.

Text Language

Sets the text language on the device.

NOTE: Changing the text language does not change the language of user-entered data or map data, such as street names.

WAAS/EGNOS

Enables the system to use Wide Area Augmentation System/European Geostationary Navigation Overlay Service (WAAS/EGNOS) data.

External Power Off

Sets the power mode when disconnected from external power.

External Power On

Sets the power mode when connected to external power.

Interface

Sets the format of the serial interface (Serial Interface Settings).

AA Battery Type

Allows you to change the type of AA battery you are using.

NOTE: This setting is disabled when the battery pack is installed.