This control is best used for situations when you want
to control and suppress clutter or noise near the water
surface. It also allows for the display of targets near the
surface that are otherwise hidden or masked by surface
noise.
Sonar Appearance Settings
From a sonar view, select
Options
>
Sonar Setup
>
Appearance
.
Color Scheme
: Sets the color scheme.
Color Gain
: Adjusts the intensity of colors (
).
A-Scope
: Displays a vertical flasher along the right side
of the screen that shows instantaneously the range to
targets along a scale.
Depth Line
: Shows a quick-reference depth line.
Edge
: Highlights the strongest signal from the bottom to
help define the hardness or softness of the signal.
View Selection
: Sets the direction of the Garmin SideVü
sonar view.
Fish Symbols
: Sets how the sonar interprets suspended
targets.
Shows suspended targets as symbols and
background sonar information.
Shows suspended targets as symbols with
target depth information and background sonar
information.
Shows suspended targets as symbols.
Shows suspended targets as symbols with
target depth information.
Pic. Advance
: Allows the sonar picture to advance faster
by drawing more than one column of data on the
screen for each column of sounder data received. This
is especially helpful when you are using the sounder in
deep water, because the sonar signal takes longer to
travel to the water bottom and back to the transducer.
The 1/1 setting draws one column of information on
the screen per sounder return. The 2/1 setting draws
two columns of information on the screen per sounder
return, and so on for the 4/1 and 8/1 settings.
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
, 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
, the targets are small and more difficult to see.
You can use echo stretch and filter width together to
obtain the preferable resolution and noise reduction.
With echo stretch and filter width set to low, the display
has the highest resolution, but is the most susceptible
to noise. With echo stretch set to high and filter width
set to low, the display has a lower resolution, but has
wider targets. With echo stretch and filter width set to
high, the display has the lowest resolution, but is the
least susceptible to noise. It is not recommended to set
echo stretch to low and filter width to high.
Overlay Data
: Sets the data shown on the sonar screen.
Sonar Alarms
WARNING
The sonar alarms feature is a tool for situational
awareness only and may not prevent grounding in
all circumstances. It is your obligation to ensure safe
operation of the vessel.
CAUTION
The Beeper setting must be turned on to make alarms
audible (
). Failure
to set audible alarms could lead to injury or property
damage.
NOTE:
Not all options are available on all transducers.
From an applicable sonar view, select
Options
>
Sonar
Setup
>
Alarms
.
You can also open the sonar alarms by selecting
Options
>
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.
44
Sonar Fishfinder
