User manual

Setting the FrontVü Depth Alarm
WARNING
The FrontVü depth alarm is a tool for situational awareness only,
and may not prevent groundings in all circumstances. It is the
obligation of the vessel operator to ensure safe operation of the
vessel.
This alarm is available only with Panoptix FrontVü transducers.
You can set an alarm to sound when the depth is below a
specified level. For best results, you should set the bow offset
when using the front collision alarm (Setting the Bow Offset,
page 34).
1
From the FrontVü sonar view, select Menu > FrontVü
Alarm.
2
Select On.
3
Enter the depth at which the alarm is triggered, and select
Done.
On the FrontVü screen, a depth line shows the depth at which
the alarm is set. The line is green when you are in a safe depth.
The line turns yellow when you are going faster than the forward
range gives you time to react (10 seconds). It turns red and
sounds an alarm when the system detects an obstruction or the
depth is less than the entered value.
CAUTION
The ability to effectively avoid running aground with FrontVü
sonar decreases as your speed rises above 8 knots.
LiveVü and FrontVü Appearance Settings
From a LiveVü or FrontVü Panoptix sonar view, select Menu >
Sonar Setup > Appearance.
Color Scheme: Sets the color palette.
Color Gain: Adjusts the intensity of colors shown on the screen.
You can select a higher color gain value to see targets higher
in the water column. A higher color gain value also allow you
to differentiate low intensity returns higher in the water
column, but this causes a loss in the differentiation of the
returns at the bottom. You can select a lower color gain value
when targets are near the bottom, to help you distinguish
between targets and high intensity returns such as sand,
rock, and mud.
Trails: Sets the how long the trails appear on the screen. The
trails show the movement of the target.
Bottom Fill: Colors the bottom brown to distinguish it from the
water returns.
Grid Overlay: Shows a grid of range lines.
Scroll History: Shows the sonar history in a traditional sonar
view.
RealVü Appearance Settings
From a RealVü sonar view, select Menu > Sonar Setup >
Appearance.
Point Colors: Sets a different color palette for the sonar return
points.
Bottom Colors: Sets the color scheme for the bottom.
Bottom Style: Sets the style for the bottom. When you are in
deep water, you can select the Points option and manually
set the range to a shallower value.
Color Key: Shows a legend of the depths the colors represent.
LiveScope and Perspective Sonar Menu
From the LiveScope or Perspective sonar view, select Menu.
Gain: Controls the level of detail and noise shown on the sonar
screen.
If you want to see the highest intensity signal returns on the
screen, you can lower the gain to remove lower intensity
returns and noise. If you want to see all return information,
you can increase the gain to see more information on the
screen. Increasing the gain also increases noise, and can
make it more difficult to recognize actual returns.
Depth Range: Adjusts the range of the depth scale.
Allowing the device to adjust the range automatically keeps
the bottom within the lower portion of the sonar screen, and
can be useful for tracking a bottom that has minimal or
moderate terrain changes.
Manually adjusting the range enables you to view a specified
range, which can be useful for tracking a bottom that has
large terrain changes, such as a drop-offs or cliffs. The
bottom can appear on the screen as long as it appears within
the range you have set.
Available in LiveScope sonar view.
Forward Range: Adjusts the range of the forward scale.
Allowing the device to adjust the range automatically adjusts
the forward scale in relation to the depth. Manually adjusting
the range enables you to view a specified range. The bottom
can appear on the screen as long as it appears within the
range you have set.
Available in LiveScope sonar view.
Range: Adjust the range.
Allowing the device to adjust the range automatically keeps
the bottom within the lower or outer third of the sonar screen,
and can be useful for tracking a bottom that has minimal or
moderate terrain changes.
Manually adjusting the range enables you to view a specified
range, which can be useful for tracking a bottom that has
large terrain changes, such as a drop-offs or cliffs. The
bottom can appear on the screen as long as it appears within
the range you have set.
Available in Perspective sonar view.
Transmit: Stops the active transducer from transmitting.
Sonar Setup: Adjusts the setup of the transducer and the
appearance of the sonar returns (LiveScope and Perspective
Sonar Setup, page 33).
Edit Overlays: Adjusts the data shown on the screen
(Customizing the Data Overlays, page 5).
LiveScope and Perspective Sonar Setup
From the LiveScope or Perspective sonar view, select Menu >
Sonar Setup.
Appearance: Configures the appearance of the sonar screen
(LiveScope and Perspective Appearance Settings,
page 34).
Noise Reject: Reduces noise and interference and attempts to
remove returns that are not actually targets in the water.
Ghost Reject: Reduces the occurrence of "ghost" images,
which are duplicated or reflected images that are not actually
targets in the water. "Ghost" images are caused by strong
sonar returns, such as the bottom. Shallow water and hard
bottoms generally have stronger returns and may cause
"ghost" images to occur more obviously.
Adjusting the Ghost Reject and Noise Reject settings
together reduces the occurrence of "ghost" images most
effectively.
TVG: Adjusts the time varying gain, which can reduce noise.
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.
Overlay Data: Sets the data shown on the sonar screen.
Sonar Fishfinder 33