Lowrance 2000C Supplementary Manual page 2

Turn the unit on, and the upgrade begins
automatically.
Operation
The Terrain Awareness feature can be
turned on and off in the Map Categories
Drawn menu by checking (on) or unchecking
(off) the Terrain Awareness category. If you
turn off the Background subcategory, the
map screens will not show shaded relief. If
you turn off the Warnings subcategory, po-
tentially hazardous terrain will not be high-
lighted in various colors.
Color Code
As you fly, the AirMap notes your current
altitude and the height of the terrain below
you. The relief map shows areas with differ-
ent risk levels in different colors, according
to the following perimeters:
• Red highlight: indicates terrain that is at
your current altitude or higher.
• Yellow highlight: indicates terrain 500
feet below your current altitude.
• Green highlight: indicates terrain 1,000
feet below your current altitude.
• When flying over the ocean, the surface
shading in the Profile Window reverts to a
pattern of small Xs, indicating no risk of
flying into elevated terrain.
All map screens will show the terrain relief
shading except for the Navigation Panel and
the Aviation Map option. On those screens,
the terrain awareness color highlight does
appear.
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