Simrad GB40, Manual

Page: 57 / 156

If the chart guard zone is Off, it's not shown on the Chart and it
isn't active.
¾
To turn the chart guard zone On or Off:
•
Select
Guard Zone
. (If this button is not in the main menu,
make the Chart pane active, or select
Return / Settings
.)
•
The
Guard Zone
button shows the current setting. Select it
to change the setting.
•
When you are finished, select
Return
.
3.23 Chart: Safe depths on/off
You can toggle the safe depths boundary line On or Off. If it's On,
the boundary line between safe and unsafe water depths for
navigation immediately appears as a thick gray line on your
Chart
and the safe water changes to a different color.
If you change this setting, it's also changed on any other display
units that show the same
Chart view.
The gray boundary line is at the Safe Depth setting.
¾
To change the safe depths setting:
•
Select
Chart Presentation.
(If this button is not in the
main menu, make the Chart pane active, or select
Return /
Settings
.)
•
The
Shade Safe Depths
button shows the current setting.
Select it to change the setting.
•
When you are finished, select
Return
.
3.24 Chart: Safe soundings on/off
You can toggle the numeric depth values On or Off on your Chart .
¾
To change the safe soundings setting:
•
Select
Chart Presentation
. (If this button is not in the
main menu, make the Chart pane active, or select
Return /
Settings
.)
•
The
Safe Soundings
button shows the current setting.
Select it to change the setting.
•
When you are finished, select
Return
.
56 | Chart