Units Settings; Navigation Settings - Garmin AQUAMAP 10x2 Series Owner's Manual

must have this setting turned on.

Units Settings

Select Settings > Preferences > Units.
System Units: Sets the unit format for the device.
North Reference: Sets the direction references used in calculating heading
information. True sets geographic north as the north reference. Grid sets
grid north as the north reference (000º). Magnetic sets the magnetic north
as the north reference.
Variance: Sets the magnetic declination, the angle between magnetic north
and true north, for your present location.
Position Format: Sets the position format in which a given location reading
appears. Do not change this setting unless you are using a map or chart
that specifies a different position format.
Map Datum: Sets the coordinate system on which the map is structured. Do
not change this setting unless you are using a map or chart that specifies
a different map datum.
Time: Sets the time format, time zone, and daylight saving time.

Navigation Settings

NOTE: Some settings and options require additional charts or hardware.
Select Settings > Preferences > Navigation.
Route Labels: Sets the type of labels shown with route turns on the map.
Turn Transition: Adjusts how the AQUAMAP transitions to the next turn or
leg or the route. You can set the transition to be based on time or distance
before the turn. You can increase the time or distance value to help
improve the accuracy of the autopilot when navigating a route or an Auto
Guidance line with many frequent turns or at higher speeds. For straighter
routes or slower speeds, lowering this value can improve autopilot
accuracy.
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Speed Sources: Sets the source for the speed readings.
Auto Guidance: Sets the measurements for the Preferred Depth, Vertical
Clearance, and Shoreline Distance, when you are using some premium
maps.
Route Start: Selects a starting point for route navigation.
Auto Guidance Path Configurations
The Preferred Depth and Vertical Clearance settings influence how the
AQUAMAP calculates an Auto Guidance path. If an area has an unknown
water depth or an unknown obstacle height, the Auto Guidance path is not
calculated in that area. If an area at the beginning or the end of an Auto
Guidance path is shallower than the Preferred Depth or lower than the
Vertical Clearance settings, the Auto Guidance path may not be calculated in
that area, depending on the map data. On the chart, the course through those
areas appears as a gray line or a magenta and gray striped line. When your
boat enters one of those areas, a warning message appears.
NOTE: Auto Guidance is available with premium charts, in some areas.
NOTE: Not all settings apply to all maps.
You can set the parameters the AQUAMAP uses when calculating an Auto
Guidance path.
Preferred Depth: Sets the minimum water depth, based on chart depth data,
that your boat can safely travel over.
NOTE: The minimum water depth for the premium charts (made before
2016) is 3 feet. If you enter a value of less than 3 feet, the charts only use
depths of 3 feet for Auto Guidance path calculations.
Vertical Clearance: Sets the minimum height of a bridge or obstacle, based
on chart data, that your boat can safely travel under.
Shoreline Distance: Sets how close to the shore you want the Auto
Guidance path to be placed. The Auto Guidance path may move if you
CAUTION
AQUAMAP™ 10x2/12x2 SERIES