Garmin 451s Headphones User Manual


 
38 GPSMAP 400/500 Series Owner’s Manual
Conguring the Chartplotter
Heading—sets the reference used in calculating heading
information.
Auto Magnetic
—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 Magnetic—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 species 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 species a different map datum.
Time—set the time options.
Time Format
—select 12-hour, 24-hour, or UTC time format.
Time Zone—set the time zone you want displayed for time
readings.
DST
(Daylight Saving Time)—select Off, On, or Auto. The
auto setting automatically turns daylight saving time on or off,
depending on the time of year.
Changing the System Language
To change the system language, from the Home screen, select
Congure > Preferences > Language and then select the
language.
Conguring Navigation Preferences
To change navigation preferences, from the Home screen, select
Congure > Preferences > Navigation.
Route Labels—for saved routes, this determines whether route
turns are indicated by number (Turn 1, Turn 2, and so on) or by
waypoint name, or whether the description of turns is hidden.
Turn Transition—set how much time or how far before a turn in a
route that you transition to the next leg.
Speed Sources—specify the sensor used for wind numbers and fuel
economy. Select Wind or Fuel Economy to toggle between water
(from a water-speed sensor) and GPS (from the calculated GPS
speed).
Auto Guidance
—set the automatic guidance parameters:
Safe Depth
—set the minimum depth (chart depth datum) to
allow when calculating an automatic guidance path. A safe depth
of less than one meter is not allowed when using automatic
guidance.