Bedienungsanleitung Garmin echoMAP 50 (Seite 22 von 44) (Englisch)

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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.

1From a sonar view, select Menu > Sonar Setup > Scroll

Speed.

2Select 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 chartplotter,

sounder modules, and 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 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.

Chirp frequencies allow you to sweep each pulse through a

range of frequencies, resulting in better target separation in

deep water. Chirp can be used to distinctly identify targets, like

individual fish in a school, and for deep water applications.

Chirp generally performs better than single frequency

applications. Because some fish targets may show up better

using a fixed frequency, you should consider your goals and

water conditions when using Chirp.

Some sonar black boxes and transducers also provide the

ability to customize preset frequencies for each transducer

element, which enables you to change the frequency quickly

using the presets as the water and your goals change.

Viewing two frequencies concurrently using the split-frequency

view allows you to see deeper with the lower frequency return

and, at the same time, see more detail from the higher

frequency return.

Selecting Frequencies

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

transducers.

You can indicate which frequencies appear on the sonar

screen.

1From a sonar view, select Menu > Frequency.

2Select 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.

1From a sonar view, select Menu > Frequency.

2Select Add.

3Enter 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.

Selecting the Transducer Type

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

kind of transducer you have.

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.

1From a sonar view, select Menu > Sonar Setup >

Installation > Transducer Type.

2Select an option:

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

Dual Beam.

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

select Dual Frequency.

• 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: 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 might want to increase the scroll

speed.

On-screen Control: Sets what 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. 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.

16 Sonar

Garmin echoMAP 50 Seite 22

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