Handleiding Garmin GPSMAP 7400 series (pagina 29 van 62) (Engels)

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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.

Select an option:

• While in the Garmin ClearVü or SideVü sonar view, select

Contrast

• While in a

Panoptix LiveVü sonar view, select Color Gain.

• While in another sonar view, select Sonar Setup >

Advanced > Color Gain.

Select an option:

• To increase or decrease the color intensity manually,

select Up or

Down.

• To use the default setting, select Default.

Adjusting the Range of the Depth or Width

Scale

You can adjust the range of the depth scale traditional and

Garmin ClearVü sonar views and the range of the width scale

for the

SideVü sonar view.

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.

From a sonar view, select Menu > Range.

Select an option:

• To allow the chartplotter to adjust the range automatically,

select Auto.

• To increase or decrease the range manually, select Up or

Down.

TIP:

From the sonar screen, you can select

or to

manually adjust the range.

TIP:

When viewing multiple sonar screens, you can select

Select to choose the active screen.

Setting the Zoom Level on the Sonar Screen

From a sonar view, select Menu

> Zoom

Select an option:

• To zoom in on the sonar data from the bottom depth,

select

Bottom Lock.

• To set the depth range of the magnified area manually,

select

Set Zoom, select View Up or View Down to set the

depth range of the magnified area, and select Zoom In or

Zoom Out to increase or decrease the magnification of

the magnified area.

• To set the depth and zoom automatically, select Set

Zoom >

Auto

• To cancel the zoom, select No Zoom.

Setting the Scroll Speed

You can set the rate at which the sonar image moves across the

screen. A higher scroll speed shows more detail, especially

while moving or trolling. A lower scroll speed displays sonar

information on the screen longer. Setting the scroll speed on

one sonar view applies to all the sonar views.

From a sonar view, select Menu > Sonar Setup > Scroll

Speed.

Select an option:

• To adjust the scroll speed automatically using speed-over-

ground or water speed data, select Auto

The Auto setting selects a scroll rate to match the boat

speed, so targets in the water are drawn with the correct

aspect ratio and appear less distorted. When viewing

Sonar 21

Garmin GPSMAP 7400 series Handleiding

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