Humminbird Legend 2000 - Manual (Page 9)

Optimizing the Depth Range for Sonar Targets
When the image of the
bottom does not appear
close to the bottom of
the LCD display, the
Legend 2000 Series is
not fully optimizing the
display to show sonar
targets, such as fish, that
are very close together.
To enhance the ability of
the unit to separate sonar
targets and to optimize the display for maximum
resolution, follow these steps:
1. Make sure the Legend 2000 Series is operating in Automatic
Mode.
2. Push the R ANGE knob. An adjustment indicator appears at the lower
right corner of the C HART W INDOW .
3. Turn the R ANGE knob counterclockwise until the image of bottom is
close to the bottom of the LCD display but still shows the area of
interest.
Note: As the depth of the water increases, the L EGEND 2000 S ERIES
changes the depth range to keep the bottom on-screen. The
L EGEND 2000 S ERIES
uses a depth range to keep the bottom
contour close to the bottom of the display.
To return the depth range to normal viewing, turn the
unit off and back on again using the
G AIN knob. This is
the only way to reset the depth range to normal
viewing.
Optimizing the Depth Range for Second Return
To optimize the depth
range for viewing the
second return, follow
these steps.
1. Make sure the L EGEND 2000
S ERIES is operating in
Automatic.
2. Push the R ANGE knob. An
adjustment indicator appears
at the lower right corner of
the C
HART W INDOW .
3. Turn the R ANGE knob clockwise until the second return is visible on
the display.
4. To return the depth range to normal viewing, rotate the R ANGE knob
counterclockwise until the depth range stops updating.
Note: The second return does not appear at many of the deeper
depth ranges. The appearance of the second return depends
on depth of the water, water conditions, bottom hardness and
the gain setting.
The L EGEND 2000 S ERIES
operates with this offset depth
range until it is returned to the original settings, or the
unit is turned off, after which the unit defaults to
factory settings.
Bottom Lock Zoom Mode
B TM L OCK
(Bottom Lock)
mode tracks the bottom
similarly to Automatic
mode; however, the
display shows a full range
view on right and a
zoomed window on the
left. The zoomed window
provides added display
resolution for separating
sonar returns that are very
close together, such as
those caused by fish
suspended close to the
bottom.
As the depth changes, the L EGEND 2000 S ERIES
automatically keeps the bottom visible in the zoomed
window and the full range view. In the full range view,
horizontal zoom preview bars define the area of
bottom being enlarged. The default setting varies
based on the depth range; however, this setting can
be changed to show more area around the bottom, or
to show the bottom in greater detail.
7
USING THE LEGEND 2000 SERIES
MODES OF OPERATION / OPTIMIZING THE DISPLAY
Adjustment Indicator
Optimized Display
Optimized Display showing second return
Bottom Lock Zoom Mode
Zoom Window Zoom Preview
Bars