Units Settings; Navigation Settings - Garmin ECHOMAP UHD2 5 Series Owner's Manual

Units Settings

Select > Preferences > Units.
System Units: Sets the unit format for the device.
Variance: Sets the magnetic declination, the angle between magnetic north and true north, for your present
location.
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.
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 > Preferences > Navigation.
Route Labels: Sets the type of labels shown with route turns on the map.
Turn Transition: Adjusts how the chartplotter 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.
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 chartplotter calculates an Auto Guidance
path. If a section of an Auto Guidance path is shallower than the Preferred Depth or lower than the Vertical
Clearance settings, the section of the Auto Guidance path appears as a solid orange line or a red striped line in
Garmin LakeVü g4 and BlueChartg4 Vision charts and appears as a magenta and gray striped line in previous
versions. 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 chartplotter uses when calculating an Auto Guidance path.
Select > Preferences > Navigation > Auto Guidance.
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 path may
move if you change this setting while navigating. The available values for this setting are relative, not
absolute. To ensure that path is placed the appropriate distance from shore, you can assess the placement
of the path using one or more familiar destinations that require navigation through a narrow waterway
(Adjusting the Distance from Shore, page
Device Configuration
CAUTION
37).
(Route Color Coding, page 28).
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