Garmin gpsmap 4008 User Manual

Configuring the Chartplotter

Use the Configure screen to configure unit settings.

To change general system settings from the Home screen, select 

 > 

.

Simulator—turn Simulator Mode 

 or 

. Select 

 to set simulator options. (If you set the 

unit into a Store Demonstration mode during the initial unit setup, this setting is named Demo.)
Language—select the on-screen language.
Auto Power Up (GPSMAP 4010 and GPSMAP 5015 only)—turn Auto Power Up 

 or 

. When 

 is selected, the chartplotter will automatically turn on whenever power is applied, unless the 

chartplotter is turned off with the Power Key before power is lost.
Beeper/Display—select 

 to set when the unit makes audible sounds. Select 

 to 

brighten or darken the backlight. Select 

 to switch between Day Mode and Night Mode.

GPS—view GPS satellites, turn 

 on or off, select the source of GPS signals, and 

set the speed filter to 

, 

, or 

. The speed filter averages the speed of your boat over a short 

period of time for smoother speed values.
System Information—view system information, restore factory settings, view the status of 

networked devices, and display the event log. The event log displays a list of system events. Select 

the event to view additional information.
Overlay Numbers—view or edit the options for Wind (

 or 

) and Next 

Turn numbers (

 or 

) for routes.

To change units of measure from the Home screen, select 

 > 

.

System Units—global setting that defines individual units of measure at the same time. 

, 

 

, 

, or 

. Select 

 to individually 

define units of measure for depth, temperature, distance, speed, elevation, volume, and pressure.

  NOtE: You must be receiving NMEA sonar depth data or using a Garmin sounder module to view 

depth and water temperature information.

Heading—sets the reference used in calculating heading information.

Auto Mag Var—Automatic Magnetic Variation automatically sets the magnetic declination for 

your location.
True—sets true north as the heading reference.
Grid—sets grid north as the heading reference (000º).
User Mag Var—allows you to set the magnetic variation value.

Position Format—change the coordinate style in which a given location reading appears. Do not 

change the position format unless you are using a map or chart that specifies a different position 

format.
Map Datum—change the coordinate system in which the map is structured. Do not change the Map 

Datum unless you are using a map or chart that specifies a different Map Datum.