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DISPLAY ZOOM BAR
When the unit is in the split-screen zoom
mode, the zoom bar doesn’t normally
show on the screen. The zoom bar shows
the section of water on the right side of the
screen that is being enlarged on the left
side. To turn the zoom bar on continu-
ously when the split-screen mode is on,
highlight the "Show Zoom Bar" on the
"Chart Setup" menu, then press the right
arrow key. Now press the EXIT key. If
you're not in the split-screen mode, change
to that mode. A screen similar to the one above appears.
To turn the zoom bar off, repeat the above steps.
DISPLAY ZONE BAR
The zone alarm has a range bar. Any
echoes that appear between the top and
bottom of this bar triggers the zone alarm.
This bar normally doesn't show on the
screen. To turn the zone bar on continu-
ously, highlight the "Show Zone Bar" on
the "Chart Setup" menu, then press the
right arrow key. Now press the EXIT key.
A screen similar to the one at right ap-
pears. To turn the zone bar off, repeat the
above steps. See the Alarms section for
more information on the zone alarm.
DIGITAL SONAR
When the Optima is first turned on, the digital depth display is located at the
top left corner of the screen. This display comes from a separate digital
sonar built into the unit. It displays only the bottom depth. If it loses the
bottom, the last known depth will flash on the display. When the digital finds
the bottom, it will automatically display the bottom depth again. The digital
sonar can be turned off, however this also turns all automatic features off
also, such as auto sensitivity, auto ranging, and the Fish ID. feature.
To turn the digital off, first press the MENU key, then press the up or down
arrow keys until the "DIGITAL SONAR" menu appears. Press the left arrow
key to turn it off.
Note: Turning the digital sonar off also turns the automatic mode off,
including Fish ID, and the depth alarms.