Adjusting The Appearance Of The Realvü Sonar Views; Adjusting The Realvü Sweep Speed; Turning On The A-Scope; Sonar Setup - Garmin GPSMAP 500 Series Owner's Manual

• To zoom out, pinch two fingers together.
Adjusting the Appearance of the RealVü Sonar Views
1
From a RealVü sonar view, select Menu.
2
Select an option:
• To adjust the depth at which the color palette starts over,
select Palette Depth, and select an option.
• To select a different color palette for the sonar return
points, select Sonar Setup > Point Colors, and select an
option.
• To select a different color palette for the bottom, select
Sonar Setup > Bottom Colors, and select an option.
• To select a different style for the bottom, select Sonar
Setup > Bottom Style, and select an option.
• To hide or show the color legend on the side of the
screen, select Sonar Setup > Color Key.
Adjusting the RealVü Sweep Speed
You can update how quickly the transducer sweeps back and
forth. A faster sweep rate creates a less detailed image, but the
screen refreshes faster. A slower sweep rate creates a more
detailed image, but the screen refreshes more slowly.
NOTE: This feature is not available for the RealVü 3D Historical
sonar view.
1
From a RealVü sonar view, select Menu > Sweep Speed.
2
Select an option.

Turning On the A-Scope

NOTE: This feature is not available in all sonar views.
The a-scope is a vertical flasher along the right side of the full-
screen sonar view. This feature expands the most recently
received sonar data so that it is easier to see. It can also be
helpful for detecting fish that are close to the bottom.
From a sonar view, select Menu > Sonar Setup >
Appearance > A-Scope.

Sonar Setup

NOTE: Not all options and settings apply to all models, sounder
modules, and transducers.

Sonar Settings

NOTE: Not all options and settings apply to all models, sounder
modules, and transducers.
From a sonar view, select Menu > Sonar Setup.
Depth Line: Shows a quick-reference depth line.
Scroll Speed: Sets the rate at which the sonar scrolls from right
to left.
In shallow water you might want to slow the scroll speed to
extend the length of time the information is displayed on
screen. In deeper water you can increase the scroll speed.
On-screen Control: Sets the behavior of the buttons on the
sonar screen control. This is available for touchscreen
devices.
Range Lines: Shows the vertical lines indicating the distance to
the right and left of the boat. This setting is available for
SideVü sonar view.
Color Scheme: Sets the color scheme of the sonar view. This
setting might be available in the Appearance menu.
The high contrast color schemes provide darker color
assignments to the low intensity returns. The low contrast
color schemes provide color assignments to the low intensity
returns that are similar to the background color.
Appearance: See Sonar Appearance Settings, page
Overlay Numbers: Sets the data shown on the sonar screen.
20
Advanced: See
Installation: Restores the default sonar settings.
RealVü Sonar Settings
From a RealVü sonar view, select Menu > Sonar Setup.
Point Colors: Sets a different color palette for the sonar return
points.
Bottom Style: Sets the style for the bottom. When you are in
deep water, you can set this setting to the Points and
manually set the range shallower.
Bottom Colors: Sets the color scheme for the bottom.
Color Key: Shows a legend of the depths the colors represent.
On-screen Control: Sets what the buttons on the sonar screen
control. This is available for touchscreen devices.
Overlay Numbers: Sets the data shown on the sonar screen.
Installation: Configures the transducer
Settings, page
LiveVü Sonar Settings
From a LiveVü sonar view, select Menu > Sonar Setup.
Color Scheme: Sets the color palette.
Bottom Fill: Colors the bottom brown to distinguish it from the
water returns.
Trails: Sets the how long the trails appear on the screen. The
trails show the movement of the target.
Grid Overlay: Shows a grid of range lines.
Noise Reject: Reduces the interference and the amount of
clutter shown on the sonar screen.
Scroll History: Shows the sonar history in a traditional sonar
view.
Overlay Numbers: Sets the data shown on the sonar screen
(Customizing the Overlay Numbers, page
Installation: Configures the transducer
Compass, page

Sonar Appearance Settings

From a sonar view, select Menu > Sonar Setup > Appearance.
Color Scheme: Sets the color scheme.
Edge: Highlights the strongest signal from the bottom to help
define the hardness or softness of the signal.
A-Scope: Displays a vertical flasher along the right side of the
screen that shows instantaneously the range to targets along
a scale.
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.
Fish Symbols: Sets how the sonar interprets suspended
targets.

Advanced Sonar Settings

NOTE: Not all options and settings apply to all models, sounder
modules, and transducers.
From a sonar view, select Menu > Sonar Setup > Advanced.
Interference: Adjusts the sensitivity to reduce the effects of
interference from nearby sources of noise.
20.
The lowest interference setting that achieves the desired
improvement should be used to remove interference from the
Advanced Sonar Settings, page
(Transducer Installation
21).
(Calibrating the
19).
20.
18).
Sonar