Bedienungsanleitung Garmin echoMAP 54dv (Seite 19 von 30) (Englisch)

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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

DownVü or SideVü sonar views, it is recommend to use

the Auto setting.

• To use a very fast scroll speed, select Ultrascroll®.

The Ultrascroll option quickly scrolls new sonar data, but

with a reduced image quality. For most situations, the Fast

option provides a good balance between a quickly

scrolling image and targets that are less distorted.

Sonar Frequencies

NOTE: The frequencies available depend on the transducer

being used.

Adjusting the frequency helps adapt the sonar for your particular

goals and the present depth of the water.

Higher frequencies use narrow beam widths, and are better for

high-speed operation and rough sea conditions. Bottom

definition and thermocline definition can be better when using a

higher frequency.

Lower frequencies use wider beam widths, which cover a larger

area and can let the fisherman see more targets, but could also

generate more surface noise and reduce bottom signal

continuity during rough sea conditions. Wider beam widths

generate larger arches for fish target returns, making them ideal

for locating fish. Wider beam widths also perform better in deep

water, because the lower frequency has better deep water

penetration. They can be used to search for structures such as

brush piles.

Selecting Frequencies

NOTE: You cannot adjust the frequency for all sonar views and

transducers.

You can indicate which frequencies appear on the sonar screen.

From a sonar view, select MENU > Frequency.

Select a frequency suited to your needs and water depth.

For more information on frequencies, see Sonar

Frequencies.

Creating a Frequency Preset

NOTE: Not available with all transducers.

You can create a preset to save a specific sonar frequency,

which allows you to change frequencies quickly.

From a sonar view, select MENU > Frequency.

Select Add.

Enter a frequency.

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 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.

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.

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

Advanced: See Advanced Sonar Settings.

Installation: Restores the default sonar settings.

Sonar Appearance Settings

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

transducers.

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 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.

The lowest interference setting that achieves the desired

improvement should be used to remove interference from the

screen. Correcting installation issues that cause noise is the

best way to eliminate interference.

Surface Noise: Hides surface noise to help reduce clutter.

Wider beam widths (lower frequencies) can show more

targets, but can generate more surface noise.

Color Gain: See Adjusting the Level of Detail.

TVG: Adjusts the appearance of returns to compensate for

weakened sonar signals in deeper water, and reduces the

Sonar 15

Garmin echoMAP 54dv Seite 19

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