Garmin echomap 50 series Gebruikershandleiding - Pagina 25

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Garmin echomap 50 series Gebruikershandleiding

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

select Manual, 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 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

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 frequencies.

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.

Sonar

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

Frequencies, page

19.

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.

Customizing the Panoptix Sonar Views

NOTE: Not all models support Panoptix transducers.

Calibrating the Compass

Before you can calibrate the compass, the transducer must be

installed 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: 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 the LiveVü Forward sonar page, select Menu > Sonar

Setup > Installation.

If necessary, select Use AHRS.

Select Calibrate Compass.

Follow the on-screen instructions.

Adjusting the Appearance of the LiveVü Sonar Views

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

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.

Sonar