Garmin GPS 40 Owner's Manual & Reference

Also see for echomap 40 series: Pilot's guide Installation instructions Owner's manual Owner's manual Declaration of conformity

Contents

Garmin GPS 40 Owner's Manual & Reference Manual pdf 23 page image

Battery Level IndicatorThe satellite status page also features a battery levelindicator, located below the status field to the left of the skyview, which provides a graphic display of the condition ofthe internal batteries.The battery level indicator is calibrated for alkalinebatteries. Ni-Cad and lithium batteries will notaccurately display the battery level due to voltagedifferences. No other receiver functions are affect-ed by using Ni-Cad or lithium batteries.It’s always best to store your GPS receiver with thebatteries installed to preserve the internal memoryand data. The GPS 40 features a rechargeable lithi-um battery that will maintain the internal memoryfor 3 months in the event that the batteries areremoved or totally discharged.Screen BacklightingThe GPS 40’s automatic backlight feature illuminatesthe screen display for a user-defined interval (the default is15 seconds) after every keystroke. When backlighting is on,a bulb icon will appear at the bottom left of the sky view.To turn the screen backlighting on or off:1. Press the B key.2. To adjust the duration of screen backlighting, refer to theoperation setup section (page 46).Using the screen backlighting can greatly affectbattery life. If you’re using your GPS 40 primarily indaylight hours, you should keep the backlight time-out at the default 15 second setting.ReferenceSatelliteStatus Page19A bulb icon will appear onthe status page wheneverthe screen backlighting ison. The backlight will turnon for the time selected afterevery keystroke.!#!#!#