Manual Garmin GPSMAP 8424 MFD (page 30 of 64) (English)

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Select an option:

• To change the colors of the sonar view, select Color

Scheme

, and select an option.

• To adjust the length of the trails that show target

movement, select

Trails, and select an option.

• To distinguish the bottom from the water by coloring the

bottom brown, select Bottom Fill.

• To show or hide the range grid lines, select Grid Overlay

• To hide or show the history on the side of the screen,

select Scroll History.

Setting the LiveVü

Transducer Transmit Angle

You can change the LiveVü

transducer transmit angle to aim the

transducer at a particular area of interest. For example, you

might aim the transducer to follow a bait ball or focus on a tree

as you pass it.

From a

LiveVü sonar view, select

Menu >

Transmit Angle

Select an option.

Adjusting the RealVü

Viewing Angle and Zoom Level

You can change the viewing angle of the RealVü sonar views.

You can also zoom in and out of the view.

From a RealVü sonar view, select an option:

• To adjust the viewing angle diagonally, select .

• To adjust the viewing angle horizontally, select .

• To adjust the viewing angle vertically, select .

• To adjust the viewing angle, swipe the screen in any

direction.

• To zoom in, spread two fingers apart.

• To zoom out, pinch two fingers together.

Adjusting the Appearance of the RealVü Sonar Views

From a RealVü sonar view, select Menu.

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.

From a

RealVü sonar view, select

> Sweep Speed

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 > On

Selecting the Transducer Type

Before you can select the transducer type, you must know what

kind of transducer you have.

This chartplotter is compatible with the Garmin ClearVü

transducer as well as a range of accessory transducers

including Garmin

GT transducers, which are available at

www.garmin.com.

If you are connecting a transducer that was not included with the

chartplotter, you may need to set the transducer type to make

the sonar function properly. If the device automatically detected

your transducer, this option does not appear.

From a sonar view, select Menu

> Sonar Setup >

Installation > Transducer Type

Select an option:

• If you have a 200/77 kHz, dual-beam transducer, select

Dual Beam (200/77 kHz).

• If you have a 200/50 kHz, dual-frequency transducer,

select

Dual Frequency (200/50 kHz).

• If you have another type of transducer, select it from the

list.

Sonar Setup

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

modules, and transducers.

Sonar Settings

NOTE:

These settings do not apply to Panoptix transducers.

See

RealVü Sonar Settings, page 22 and LiveVü

Sonar

Settings, page

22.

From a sonar view, select Menu > Sonar Setup.

Scroll Speed: Sets the rate at which the sonar scrolls from right

to left (Setting the Scroll Speed,

page

21).

In shallow water, you can select a slower scroll speed to

extend the length of time the information is displayed on

screen. In deeper water, you can select a faster scroll speed.

Automatic scroll speed adjusts the scrolling speed to the

speed the boat is traveling.

Noise Reject: Reduces the interference and the amount of

clutter shown on the sonar screen (Sonar Noise Rejection

Settings

, page

23).

Appearance: Configures the appearance of the sonar screen

(Sonar Appearance Settings, page 23).

Alarms: Sets sonar alarms (Sonar Alarm Settings

, page

23).

Advanced: Configures various sonar display and data source

settings (Advanced Sonar Settings,

page

23).

Installation: Configures the transducer (Transducer Installation

Settings, page 23).

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.

Overlay Data: Sets the data shown on the sonar screen.

Installation: Configures the transducer (Transducer Installation

Settings, page 23).

LiveVü Sonar Settings

From a LiveVü sonar view, select Menu > Sonar Setup.

Color Scheme: Sets the color palette.

22 Sonar

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Others manual(s) of Garmin GPSMAP 8424 MFD

Garmin GPSMAP 8424 MFD Installation Guide - English - 8 pages

Garmin GPSMAP 8424 MFD Installation Guide - German - 10 pages

Garmin GPSMAP 8424 MFD User Manual - German - 72 pages

Garmin GPSMAP 8424 MFD Installation Guide - Dutch - 10 pages

Garmin GPSMAP 8424 MFD User Manual - Dutch - 68 pages

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Garmin GPSMAP 8424 MFD Manual

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