Setting The Heading And Course Over Ground Lines; Other Vessels Settings On The Charts And Chart Views; Fish Eye 3D Settings; Navigation With A Chartplotter - Garmin echomap 40 series Owner's Manual

Symbols: Shows and configures the appearance of various
symbols on the chart, such as the vessel icon, navaid
symbols, land POIs, and light sectors.
Style: Sets how the chart appears over 3D terrain.
Hazard Colors: Shows shallow water and land with a color
scale. Blue indicates deep water, yellow is shallow water, and
red is very shallow water.
Safe Depth: Sets the appearance of a safe depth for the
Mariner's Eye 3D chart view.
NOTE: This setting affects only the appearance of hazard
colors for the Mariner's Eye 3D chart view. It does not affect
the safe water depth Auto Guidance setting or the sonar
shallow water alarm setting.
Range Rings: Shows and configures the appearance of range
rings, which help you to visualize distances in some chart
views.
Lane Width: Specifies the width of the navigation lane, which is
the magenta line in some chart views that indicates the
course to your destination.

Setting the Heading and Course Over Ground Lines

You can show the heading line and the course over ground
(COG) line on the chart.
COG is your direction of movement. Heading is the direction the
bow of the boat is pointed, when a heading sensor is connected.
1
From a chart view, select MENU > Chart Setup > Chart
Appearance > Heading Line.
2
If necessary, select Source, and select an option:
• To automatically use the source available, select Auto.
• To use the GPS antenna heading for COG, select GPS
Heading (COG).
• To use data from a connected heading sensor, select
Heading.
• To use data from both a connected heading sensor and
the GPS antenna, select COG and Heading.
This displays both the heading line and the COG line on
the chart.
3 Select Display, and select an option:
• Select Distance > Distance, and enter the length of the
line shown on the chart.
• Select Time > Time, and enter the time used to calculate
the distance your boat will travel in the specified time at
your present speed.

Other Vessels Settings on the Charts and Chart Views

NOTE: These options require connected accessories, such as
an AIS receiver or VHF radio.
From a chart or 3D chart view, select MENU > Other Vessels.
AIS List: Shows the AIS list
DSC List: Shows the DSC list
AIS Display Setup: See AIS Display
DSC Trails: Shows the tracks of DSC vessels, and selects the
length of the track that appears using a trail.
AIS Alarm: Sets the safe-zone collision alarm
Zone Collision Alarm).
AIS Display Settings
NOTE: AIS requires the use of an external AIS device and
active transponder signals from other vessels.
From a chart or 3D chart view, select MENU > Other Vessels >
AIS Display Setup.
AIS Display Range: Indicates the distance from your location
within which AIS vessels appear.
Details: Shows details about AIS-activated vessels.

Navigation with a Chartplotter

(Viewing a List of AIS Threats).
(DSC List).
Settings.
(Setting the Safe-
Projected Heading: Sets the projected heading time for AIS-
activated vessels.
Trails: Shows the tracks of AIS vessels, and select the length of
the track that appears using a trail.

Fish Eye 3D Settings

NOTE: This feature is available with premium charts, in some
areas.
From the Fish Eye 3D chart view, select MENU.
View: Sets the perspective of the 3D chart view.
Tracks: Shows tracks.
Sonar Cone: Shows a cone that indicates the area covered by
the transducer.
Fish Symbols: Shows suspended targets.
Navigation with a Chartplotter
If your vessel has an autopilot system, a dedicated autopilot
control display must be installed at each steering helm in order
to disable the autopilot system.
The Auto Guidance feature is based on electronic chart
information. That data does not ensure obstacle and bottom
clearance. Carefully compare the course to all visual sightings,
and avoid any land, shallow water, or other obstacles that may
be in your path.
When using Go To, a direct course and a corrected course may
pass over land or shallow water. Use visual sightings, and steer
to avoid land, shallow water, and other dangerous objects.
NOTE: Auto Guidance is available with premium charts, in some
areas.
NOTE: Mariner's Eye 3D and Fish Eye 3D chart views are
available with premium charts, in some areas.
NOTE: The offshore Fishing chart is available with premium
charts, in some areas.
To navigate, you must choose a destination, set a course or
create a route, and follow the course or route. You can follow
the course or the route on the Navigation chart, Fishing chart,
Perspective 3D chart view, or Mariner's Eye 3D chart view.
You can set and follow a course to a destination using one of
three methods: Go To, Route To, or Guide To.
Go To: Takes you directly to the destination. This is the
standard option for navigating to a destination. The
chartplotter creates a straight-line course or navigation line to
the destination. The path may run over land and other
obstacles.
Route To: Creates a route from your location to a destination,
allowing you to add turns along the way. This option provides
a straight-line course to the destination, but allows you to add
turns into the route to avoid land and other obstacles.
Guide To: Creates a path to a destination using Auto Guidance.
This option is available only when using a compatible
premium chart in a compatible chartplotter. It provides a turn-
by-turn navigation line to the destination, avoiding land and
other obstacles. The navigation line is based on the chart
data and the safe depth, safe height, and shoreline distance
user-defined chartplotter settings. Using these settings and
chart data, the chartplotter creates a navigation line that
avoids all areas that cannot be navigated between the
present location and the destination.
CAUTION
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