Viewing two frequencies concurrently using the split-frequency
view allows you to see deeper with the lower frequency return
and, at the same time, see more detail from the higher
frequency return.
Selecting Frequencies
NOTE:
You cannot adjust the frequency for all sonar views and
transducers.
You can indicate which frequencies appear on the sonar screen.
1
From a sonar view, select
>
Frequency
.
2
Select a frequency suited to your needs and water depth.
For more information on frequencies, see
Sonar
Frequencies
, page 4
.
Creating a Waypoint on the Sonar Screen
Using the Device Keys
1
From a sonar view, use the arrow keys to select a location to
save.
2
Select .
3
If necessary, edit the waypoint information.
Pausing the Sonar
Not all options are available on all models.
Select an option:
• From the
Traditional
or
ClearVü
sonar screen, select or
.
• From the
SideVü
sonar screen, select or .
Adjusting the Zoom
You can adjust the zoom manually by specifying the span and a
fixed starting depth. For example, when the depth is 15 m and
the starting depth is 5 m, the device displays a magnified area
from 5 to 20 m deep.
You also can allow the device to adjust the zoom automatically
by specifying a span. The device calculates the zoom area from
the bottom of the water. For example, if you select a span of
10 m, the device displays an magnified area from the bottom of
the water to 10 m above the bottom.
1
From a sonar screen, select
>
Zoom
.
2
Select an option:
• Select
Bottom Lock
to lock the screen to the water
bottom.
• Select
Manual
to manually set the zoom.
• Select
Auto
to automatically set the zoom.
• Select
Split Zoom
to turn on the split-zoom view.
Locking the Screen to the Water Bottom
You can lock the screen to the water bottom. For example, if you
select a span of 20 meters, the device shows an area from the
water bottom to 20 meters above the bottom. The span appears
on the right side.
1
From a sonar view, select
>
Zoom
>
Bottom Lock
.
2
Select a span.
Sonar Gain
The gain setting controls the sensitivity of the sonar receiver to
compensate for water depth and water clarity. Increasing the
gain shows more detail, and decreasing the gain reduces screen
clutter.
NOTE:
Setting the gain on one sonar view applies the setting to
all the views.
Setting the Gain Automatically
NOTE:
To set the gain on the split-frequency screen, you must
set each frequency separately.
1
Select
>
Gain
.
2
Select
Enable Auto Gain
, if applicable.
3
Select an option:
• To display higher-sensitivity, weaker sonar returns with
more noise automatically, select
Auto High
.
• To display medium-sensitivity sonar returns with moderate
noise automatically, select
Auto Med
.
• To display lower-sensitivity sonar returns with less noise
automatically, select
Auto Low
.
Setting the Gain Manually
1
From a sonar screen, select
>
Gain
.
2
Select or until you begin to see noise in the water portion
of the screen.
3
Select or to decrease the gain.
Adjusting the Range of the Depth Scale
You can adjust the range of the depth scale that appears on the
right side of the screen. Automatic ranging keeps the bottom
within the lower third of the sonar screen, and can be useful for
tracking the bottom where there are slow or moderate terrain
changes.
When the depth changes dramatically, like a drop off or cliff,
manually adjusting the range allows a view of a specified depth
range. The bottom is shown on the screen as long as the bottom
is anywhere within the manual range established.
1
From a sonar screen, select
>
Range
.
2
Select an option:
• To allow the device to adjust the range automatically
based on the depth, select Auto.
• To increase the range manually, select or .
• To decrease the range manually, select or .
NOTE:
From a sonar screen, select and to quickly
manually adjust the range.
Setting the range on one screen applies that setting to all
screens, except the SideVü screen.
Sonar Setup
NOTE:
Not all options and settings apply to all models and
transducers.
Showing and Adjusting the Depth Line
You can show and adjust a horizontal line on a sonar screen.
The depth of the line is indicated on the right side of the screen.
NOTE:
Showing a depth line on one screen displays the depth
line on all the screens.
1
From a sonar screen, select
>
Sonar Setup
>
Depth
Line
.
2
Select
.
3
To adjust the
Depth Line
, select or .
Setting the Scroll Speed
You can set the rate at which the sonar image moves across the
screen. A higher scroll speed shows more detail, especially
while moving or trolling. A lower scroll speed displays sonar
information on the screen longer. Setting the scroll speed on
one sonar view applies to all the sonar views.
1
From a sonar view, select
>
Sonar Setup
>
Scroll
Speed
.
Sonar Fishfinder
5
