Manual Garmin GPSMAP 8422 MFD (page 28 of 62) (English)

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

list.

Calibrating the Compass

Before you can calibrate the compass, the transducer must be

installed on the shaft far enough away from the trolling motor to

avoid magnetic interference, and deployed in the water.

Calibration must be of sufficient quality to enable the internal

compass.

NOTE: To use the compass, you must mount the transducer on

the shaft. The compass does not work when you mount the

transducer on the motor.

NOTE: Compass calibration is available only for transducers

with an internal compass.

You can begin turning your boat before calibrating, but you must

fully rotate your boat 1.5 times during calibration.

From a

ForwardVü or LiveVü Forward sonar page, select

> Sonar Setup > Installation

If necessary, select Use AHRS.

Select

Calibrate Compass.

Follow the on-screen instructions.

Creating a Waypoint on the Sonar Screen

From a sonar view, drag the screen or select .

Select a location.

Select

New Wpt or

If necessary, edit the waypoint information.

Measuring Distance on the Sonar Screen

You can measure the distance between two points on the

SideVü sonar view.

From the

SideVü sonar view, select a location on the screen.

Select

Measure Distance.

A push pin appears on the screen at the selected location.

Select another location.

The distance and angle from the pin is listed in the upper-left

corner.

TIP: To reset the pin and measure from the current location of

the pin, select

Measure Distance.

Pausing the Sonar Display

From a sonar view, select

Viewing Sonar History

You can scroll the sonar display to view historical sonar data.

NOTE: Not all transducers save historical sonar data.

From a sonar view, select .

Drag the screen.

Sonar Sharing

This feature may not be available on all chartplotter models.

You can view the sonar data from all compatible sources on the

Garmin

Marine Network. You can view sonar data from a

compatible external sonar module, such as a GCV

™

sonar

module. In addition, you can view the sonar data from other

chartplotters that have a built-in sonar module.

Each chartplotter on the network can display sonar data from

every compatible sonar module and transducer on the network,

no matter where the chartplotters and transducers are mounted

on your boat. For example, from a transducer with Garmin

ClearVü mounted at the back of the boat, you can view the

sonar data using the GPSMAP 8212 mounted at the front of

your boat.

When sharing sonar data, the values of some sonar settings,

such as

Range and Gain, are synchronized across the devices

on the network. The values of other sonar settings, such as the

Appearance settings, are not synchronized and should be

configured on each individual device. In addition, the scroll rates

of the various traditional and

Garmin ClearVü sonar views are

synchronized to make the split views more cohesive.

NOTE: Using multiple transducers simultaneously can create

cross talk, which can be removed by adjusting the Interference

sonar setting.

Selecting a Sonar Source

This feature may not be available with all models.

When you are using more than one sonar data source for a

particular sonar view, you can select the source to use for that

sonar view. For example, if you have two sources for Garmin

ClearVü, you can select the source to use from the Garmin

ClearVü sonar view.

Open the sonar view for which you will change the source.

Select Menu

> Sonar Setup > Source

Select the source for this sonar view.

Renaming a Sonar Source

You can rename a sonar source to easily identify that source.

For example, you use "Bow" as the name of the transducer on

the bow of your boat.

The source is renamed for the present view only. For example,

to rename the Garmin ClearVü sonar source, you must open the

Garmin ClearVü sonar view.

From the sonar view, select Menu

> Sonar Setup > Source

> Rename Sources

Enter the name.

Adjusting the Level of Detail

You can control the level of detail and noise shown on the sonar

screen either by adjusting the gain for traditional transducers or

by adjusting the brightness for

Garmin ClearVü transducers.

If you want to see the highest intensity signal returns on the

screen, you can lower the gain or brightness to remove lower

intensity returns and noise. If you want to see all return

information, you can increase the gain or brightness to see more

information on the screen. This also increases noise, and can

make it more difficult to recognize actual returns.

From a sonar view, select

Menu.

Select

Gain or Brightness.

Select an option:

• To increase or decrease the gain or brightness manually,

select

Up or Down.

• To allow the chartplotter to adjust the gain or brightness

automatically, select an automatic option.

Adjusting the Color Intensity

You can adjust the intensity of colors and highlight areas of

interest on the sonar screen by adjusting the color gain for

traditional transducers or the contrast for

Garmin ClearVü and

SideVü/ClearVü transducers. This setting works best after you

have adjusted the level of detail shown on the screen using the

gain or brightness settings.

If you want to highlight smaller fish targets or create a higher

intensity display of a target, you can increase the color gain or

contrast setting. This causes a loss in the differentiation of the

high intensity returns at the bottom. If you want to reduce the

intensity of the return, you can reduce the color gain or contrast.

From a sonar view, select

Menu.

20 Sonar

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Others manual(s) of Garmin GPSMAP 8422 MFD

Garmin GPSMAP 8422 MFD Installation Guide - English - 14 pages

Garmin GPSMAP 8422 MFD Installation Guide - German - 16 pages

Garmin GPSMAP 8422 MFD User Manual - German - 70 pages

Garmin GPSMAP 8422 MFD Installation Guide - Dutch - 14 pages

Garmin GPSMAP 8422 MFD User Manual - Dutch - 68 pages

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Garmin GPSMAP 8422 MFD Manual

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