Handleiding Garmin Striker 7 (pagina 8 van 16) (Engels)

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10 m, the device displays an magnified area from the bottom of

the water to 10 m above the bottom.

From a sonar screen, select > Zoom.

Select an option:

• Select Bottom Lock to lock the screen to the water

bottom.

• Select Manual to manually set the zoom.

• Select Auto to automatically set the zoom.

• Select Split Zoom to turn on the split-zoom view.

Locking the Screen to the Water Bottom

You can lock the screen to the water bottom. For example, if you

select a span of 20 meters, the device shows an area from the

water bottom to 20 meters above the bottom. The span appears

on the right side.

From a sonar view, select > Zoom > Bottom Lock.

Select a span.

Sonar Frequencies

NOTE: The frequencies that are 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.

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 > Frequency.

Select a frequency suited to your needs and water depth.

For more information on frequencies, see Sonar

Frequencies, page 4.

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 > Frequency.

Select Add.

Enter a frequency.

Sonar Gain

The gain setting controls the sensitivity of the sonar receiver to

compensate for water depth and water clarity. Increasing the

gain shows more detail, and decreasing the gain reduces screen

clutter.

NOTE: Setting the gain on one sonar view applies the setting to

all the views.

Setting the Gain Automatically

NOTE: To set the gain on the split-frequency screen, you must

set each frequency separately.

Select > Gain.

Select Enable Auto Gain, if applicable.

Select an option:

• To display higher-sensitivity, weaker sonar returns with

more noise automatically, select Auto High.

• To display medium-sensitivity sonar returns with moderate

noise automatically, select Auto Med.

• To display lower-sensitivity sonar returns with less noise

automatically, select Auto Low.

Setting the Gain Manually

From a sonar screen, select > Gain.

Select or until you begin to see noise in the water portion

of the screen.

Select or to decrease the gain.

Adjusting the Range of the Depth Scale

You can adjust the range of the depth scale that appears on the

right side of the screen. Automatic ranging keeps the bottom

within the lower third of the sonar screen, and can be useful for

tracking the bottom where there are slow or moderate terrain

changes.

When the depth changes dramatically, like a drop off or cliff,

manually adjusting the range allows a view of a specified depth

range. The bottom is shown on the screen as long as the bottom

is anywhere within the manual range established.

From a sonar screen, select > Range.

Select an option:

• To allow the device to adjust the range automatically

based on the depth, select Auto.

• To increase or decrease the range manually, select or

. (Available only on the 5 in. and 7 in. models.)

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

(Available only on the 4 in. models.)

NOTE: From a sonar screen, select and to quickly

manually adjust the range. (Available only on the 5 in. and

7 in. models.)

From a sonar screen, select and to quickly resume auto

range. (Available only on the 5 in. and 7 in. models.)

From a sonar screen, select or to quickly adjust the range.

(Available only on the 4 in. models.)

Setting the range on one screen applies that setting to all

screens.

Sonar Setup

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

transducers.

Showing and Adjusting the Depth Line

You can show and adjust a horizontal line on a sonar screen.

The depth of the line is indicated on the right side of the screen.

NOTE: Showing a depth line on one screen displays the depth

line on all the screens.

From a sonar screen, select > Sonar Setup > Depth

Line.

Select .

To adjust the Depth Line, select or .

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 > Sonar Setup > Scroll

Speed.

Select an option:

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

ground, 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

4 Sonar

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