Handleiding Garmin VOLVO PENTA GLASS COCKPIT GPSMap 8000 (pagina 32 van 66) (Engels)

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Noise Reject: Reduces the interference and the amount of

clutter shown on the sonar screen (Sonar Noise Rejection

Settings, page 24).

Appearance: Configures the appearance of the sonar screen

(Sonar Appearance Settings, page 24).

Alarms: Sets sonar alarms (Sonar Alarms, page 24).

Advanced: Configures various sonar display and data source

settings (Advanced Sonar Settings, page 25). Not

applicable to Garmin ClearVü or SideVü sonar views.

Installation: Configures the transducer (Traditional, Garmin

ClearVü, and SideVü Transducer Installation Settings,

page 25).

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

Garmin ClearVü 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.

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.

Sonar Noise Rejection Settings

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

Reject.

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.

Color Limit: Hides part of the color palette to help eliminate

fields of weak clutter.

By setting the color limit to the color of the undesired returns,

you can eliminate the display of undesired returns on the

screen.

Smoothing: Removes noise that is not part of a normal sonar

return, and adjusts the appearance of returns, such as the

bottom.

When smoothing is set to high, more of the low-level noise

remains than when using the interference control, but the

noise is more subdued because of averaging. Smoothing can

remove speckle from the bottom. Smoothing and interference

work well together to eliminate low-level noise. You can

adjust the interference and smoothing settings incrementally

to remove undesirable noise from the display.

Surface Noise: Hides surface noise to help reduce clutter.

Wider beam widths (lower frequencies) can show more

targets, but can generate more surface noise.

TVG: Adjusts the time varying gain, which can reduce noise.

This control is best used for situations when you want to

control and suppress clutter or noise near the water surface.

It also allows for the display of targets near the surface that

are otherwise hidden or masked by surface noise.

Sonar Appearance Settings

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

Color: Sets the color scheme and color gain.

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

A-Scope: Displays a vertical flasher along the right side of the

screen that shows instantaneously the range to targets along

a scale.

Depth Line: Shows a quick-reference depth line.

Edge: Highlights the strongest signal from the bottom to help

define the hardness or softness of the signal.

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.

Sonar Alarms

NOTE: Not all options are available on all transducers.

From an applicable sonar view, select Menu > Sonar Setup >

Alarms.

24 Sonar Fishfinder

Garmin VOLVO PENTA GLASS COCKPIT GPSMap 8000 Handleiding

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