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Menu item Description Options
Spot Soundings
Determines whether a
number indicating depth
is displayed.
• OFF — depth is NOT
displayed.
• ON — depth is
displayed.
• OFF
• ON (default)
Safety Contour
Areas with depths that
are SHALLOWER than
this specied value are
shaded in a blue color
that is darker than areas
with depths that are
GREATER than this
specied value.
• OFF
• 7 ft
• 10 ft
• 16 ft
• 20 ft
• 33 ft
• 66 ft (default)
Depth Contour
The depth contour is
shown on the chart
display as a line
indicating the depth
at a particular position.
• OFF
• 16 ft
• 20 ft
• 33 ft
• 66 ft
• ALL (default)
Menu item Description Options
Hide Rocks Determines whether
rocks are shown or
hidden on the chart, and
the depth at which they
are shown:
• OFF — rocks are
displayed.
• 16 ft — rocks are
hidden at depths of
16ft and greater.
• 20 ft — rocks are
hidden at depths of
20ft and greater.
• 33 ft — rocks are
hidden at depths of
33ft and greater.
• 66 ft — rocks are
hidden at depths of
66ft and greater.
• OFF (default)
• 16 ft
• 20 ft
• 33 ft
• 66 ft
Nav. Marks Determines whether
navigation marks are
displayed on the chart:
• OFF — navigation
marks are NOT
displayed.
• ON — navigation
marks are displayed.
• OFF
• ON (default)
Using the chart
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