Humminbird Legend 2000 - Manual (Page 11)

Sonar View
S ONAR V IEW (Deep Models only)
selects the source of the
sonar information being
displayed. 200kHz displays
sonar information and
F ISH ID
from the 200kHz beam only.
50kHz displays sonar
information and
F ISH ID from
the 50kHz beam only. S PLIT
S CREEN
presents the sonar
information from the 200kHz
and 50kHz beams
simultaneously in side-by-
side windows.
200 K H Z /50 K H Z
displays the sonar
information from the 200kHz
beam and target information
from the 50kHz beam.
The S ONAR V IEW setting is retained in memory after the
unit is turned off. The factory setting is 200 K H Z
.
Light
L IGHT
activates the display
backlight and selects the
brightness level. The
backlight is manually-
controlled except when the unit first powers up.
During initial power up, the backlight turns on at full
brightness so the display will be visible at night. The
backlight will then begin to decrease in intensity
automatically until it is off in order to save energy.
Selecting the
C ONTROL P ANEL L IGHT choice stops the
automatic off process, keeping the backlight on at the
intensity level selected.
The Light setting defaults to factory settings after the
Legend 2000 Series is turned off. The factory setting
is
O N full at power up and automatic decrease to O FF .
Contrast
C ONTRAST
enhances the
viewability of the LCD by
making it darker or lighter.
Selecting a higher number
darkens the display; selecting a lower number lightens
the display. The
L EGEND 2000 S ERIES
uses sophisticated
electronics to adjust the contrast level automatically;
however, at times of extreme heat or cold, manually
adjusting the contrast for best display may be needed.
The C ONTRAST setting is retained in memory after the unit is turned off as
long as it is set between 6 and 10. The factory setting is 8.
RTS Window
RTS W INDOW
selects the width of
the window dedicated to R EAL
T IME S ONAR ™. Selecting N ARROW
decreases the width of the
RTS W INDOW
leaving more space for the C HART W INDOW
, but
some sonar returns will not be visible. Selecting W IDE
makes the RTS W INDOW
wider and shows more of the
sonar intensity information, but less space on the LCD
is available for sonar history. Selecting
O FF
turns off the
RTS W INDOW and the entire LCD shows sonar history.
Note: When the RTS Window is adjusted to Wide, no grayscale
information is shown.
The RTS W INDOW setting is retained in memory after the
L EGEND 2000 S ERIES
is turned off. The factory setting is
N ARROW
.
Surface Clutter
S URFACE C LUTTER
eliminates most
sonar returns near the water
surface caused by trapped air,
boat wakes and temperature
inversions. Most surface clutter appears on the
display because the strongest sonar returns come
from the shallowest objects. The
L EGEND 2000 S ERIES
uses
a sophisticated feature called TVG (Time Variable
Gain) to overcome surface clutter and counteract the
effect of depth on sonar return strength. The level 1
setting is optimal for making sonar information from
all depths appear uniformly. Many users, however,
prefer to see more surface clutter than this setting
shows. Selecting a higher number shows more
surface clutter, but sonar returns nearest the surface
will appear more intense than they actually are.
The S URFACE C LUTTER setting is retained in memory after the
L EGEND 2000 S ERIES
is turned off. The factory setting is 4 .
9
USING THE LEGEND 2000 SERIES
CHART SPEED / SONAR VIEW / LIGHT / CONTRAST / RTS WINDOW
Split window 50kHz/200kHz,
shown with metric depth, °C
and kph digital readouts
available on international
models.