48
AQUAMAP™ 10x2/12x2 SERIES
The a-scope is a vertical flasher along the right side of the view, showing
you what is underneath the transducer right now. You can use the a-scope
to identify target returns that may be missed when the sonar data is quickly
scrolling across the screen, such as when your boat is moving at high
speeds. It can also be helpful for detecting fish that are close to the bottom.
The a-scope above shows fish returns
1
and a soft bottom return
2
.
1
From a sonar view, select
MENU
>
Sonar Setup
>
Appearance
>
A-Scope
>
On
.
2
Select a hold time.
You can increase the hold time to increase the length of time the sonar
returns are displayed.
Sonar Alarms
NOTE:
Not all options are available on all transducers.
From an applicable sonar view, select
MENU
>
Sonar Setup
/
ClearVü
Setup
/
SideVü Setup
>
Alarms
.
You can also open the sonar alarms by selecting
Settings
>
Alarms
>
Sonar
.
Shallow Water
: Sets an alarm to sound when the depth is less than the
specified value.
Deep Water
: Sets an alarm to sound when the depth is greater than the
specified value.
FrontVü Alarm
: Sets an alarm to sound when the depth in front of the
vessel is less than the specified value, which can help you avoid running
aground. This alarm is available only with Panoptix FrontVü transducers.
Water Temp.
: Sets an alarm to sound when the transducer reports a
temperature that is 2°F (1.1°C) above or below the specified temperature.
Contour
: Sets an alarm to sound when the transducer detects a suspended
target within the specified depth from the surface of the water and from the
bottom.
Fish
: Sets an alarm to sound when the device detects a suspended target.
•
sets the alarm to sound when fish of all sizes are detected.
•
sets the alarm to sound only when medium or large fish are
detected.
•
sets the alarm to sound only when large fish are detected.
Advanced Sonar Settings
From a Traditional sonar view, select
MENU
>
Sonar Setup
>
Advanced
.
Shift
: Allows you to set the depth range on which the sonar is focused. This
allows you to zoom in a higher resolution in the focused depth.
When using shift, bottom tracking may not work effectively, because
the sonar looks for data within the depth range of the focused area,
which may not include the bottom. Using shift also can impact the scroll
speed, because data outside the depth range of the focused area is not
processed, which reduces the time required to receive and display the
data. You can zoom in to the focused area, which enables you to evaluate
target returns more closely at a higher resolution than just zooming alone.
Echo Stretch
: Adjusts the size of the echoes on the screen to make it easier
to see separate returns on the screen.
When targets are difficult to see
1
, echo stretch makes the target returns
more pronounced and easier to see on the screen. If the echo stretch
value is too high, the targets blend together. If the value is too low
2
, the
targets are small and more difficult to see.