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
).
Adjusting the Distance from Shore
The Shoreline Distance setting indicates how close to the
shore you want the Auto Guidance line to be placed. The
Auto Guidance line may move if you change this setting
while navigating. The available values for the Shoreline
Distance setting are relative, not absolute. To ensure the
Auto Guidance line is placed the appropriate distance
from shore, you can assess the placement of the Auto
Guidance line using one or more familiar destinations that
require navigation through a narrow waterway.
1
Dock your vessel or drop the anchor.
2
Select
Options
>
Settings
>
Preferences
>
Navigation
>
Auto Guidance
>
Shoreline Distance
>
Normal
.
3
Select a destination that you have navigated to
previously.
4
Select
Navigate To
>
Auto Guidance
.
5
Review the placement of the
Auto Guidance
line,
and determine whether the line safely avoids known
obstacles and the turns enable efficient travel.
6
Select an option:
• If the placement of the line is satisfactory, select
Options
>
Navigation Options
>
Stop Navigation
,
and proceed to step 10.
• If the line is too close to known obstacles, select
Options
>
Settings
>
Preferences
>
Navigation
>
Auto Guidance
>
Shoreline Distance
>
Far
.
• If the turns in the line are too wide, select
Options
>
Settings
>
Preferences
>
Navigation
>
Auto
Guidance
>
Shoreline Distance
>
Near
.
7
If you selected
Near
or
Far
in step 6, review the
placement of the
Auto Guidance
line, and determine
whether the line safely avoids known obstacles and the
turns enable efficient travel.
Auto Guidance maintains a wide clearance from
obstacles in open water, even if you set the Shoreline
Distance setting to Near or Nearest. As a result, the
chartplotter may not reposition the Auto Guidance line,
unless the destination selected requires navigation
through a narrow waterway.
8
Select an option:
• If the placement of the line is satisfactory, select
Options
>
Navigation Options
>
Stop Navigation
,
and proceed to step 10.
• If the line is too close to known obstacles, select
Options
>
Settings
>
Preferences
>
Navigation
>
Auto Guidance
>
Shoreline Distance
>
Farthest
.
• If the turns in the line are too wide, select
Options
>
Settings
>
Preferences
>
Navigation
>
Auto
Guidance
>
Shoreline Distance
>
Nearest
.
9
If you selected
Nearest
or
Farthest
in step 8,
review the placement of the
Auto Guidance
line,
and determine whether the line safely avoids known
obstacles and the turns enable efficient travel.
The Auto Guidance path maintains a wide clearance
from obstacles in open water, even if you set the
Shoreline Distance setting to Near or Nearest. As a
result, the chartplotter may not reposition the Auto
Guidance line, unless the destination selected requires
navigation through a narrow waterway.
10
Repeat steps 3 through 9 at least once more, using a
different destination each time, until you are familiar
with the functionality of the
Shoreline Distance
setting.
Tracks
A track is a recording of the path of your boat. The track
currently being recorded is called the active track, and it
can be saved. You can show tracks in each chart or 3D
chart view.
Showing Tracks
1
From a chart, select
Options
>
Layers
>
User Data
>
Tracks
.
2
Select the tracks to display.
A trailing line on the chart indicates your track.
Setting the Color of the Active Track
1
Select
Info
>
User Data
>
Tracks
>
Active Track
Options
>
Track Color
.
2
Select a track color.
Navigation with a Chartplotter
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