Filter
Top Products
installed. Figure B shows the
default view when the
Temp/Speed accessory is not
installed.
Depth. The digital depth number
shows the water depth directly
beneath the transducer location.
Depth Range. The depth range
is shown to the right of the
screen. The upper number is 0
indicating the surface of the
water. The lower number is one
of the nine depth ranges available
that best match the depth of the
water. As the depth of the water changes, the range changes as necessary
in order to retain a bottom representation on-screen.
When in Auto mode, the horizontal line at the top of the screen is the
“zero line,” representing the surface of the water. Occasionally there is a
gap in this line. This gap indicates
the unit is updating the display
even if the bottom is not visible
on-screen, or if the bottom
information is not changing.
New sonar information appears on
the right side of the graphic area of
the display and moves to the left as
new information is displayed. The
450TX automatically selects the
appropriate depth range to show the
depth of water beneath the
transducer. This range is selected so
the bottom representation is typically
shown about ²⁄₃ down the display.
9
USING THE 450TX
WHAT YOU SEE ON-SCREEN
Bottom Depiction
Figure B
Zero Line
Surface Clutter Rocky Bottom
Hard Bottom Soft Bottom
m
Water Depth
Depth Range
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