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Garmin striker 5dv [8/16] Setting the interference

Garmin striker 4 [8/16] Setting the interference

• To display lower-sensitivity sonar returns with less noise

automatically, select Auto Low.

Hiding Surface Noise

You can hide or display the sonar returns near the surface of the

water. Hiding surface noise helps reduce screen clutter.

NOTE: Setting the surface noise to show or hide on one screen

applies that setting to all screens.

This feature may not be available with all transducers.

From a sonar screen, select > Sonar Setup > Noise

Reject > Surface Noise.

Interference

The Interference setting adjusts sonar sensitivity to reduce the

effects of interference from nearby sources of noise.

When you adjust the interference setting from off

through low

, medium

, and high

, noise is gradually removed, but

there is little effect on the strong target returns.

Use the lowest interference setting that achieves the desired

improvement to remove interference from the screen. Correcting

installation issues that cause noise is the best way to eliminate

interference.

Setting the Interference

From a sonar screen, select > Sonar Setup > Noise

Reject > Interference.

Select an option.

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.

Adjusting the Zoom

You can adjust the zoom manually by specifying the span and a

fixed starting depth. For example, when the depth is 15 m and

the starting depth is 5 m, the device displays a magnified area

from 5 to 20 m deep.

You also can allow the device to adjust the zoom automatically

by specifying a span. The device calculates the zoom area from

the bottom of the water. For example, if you select a span of

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.

Setting the Bottom Search Limit

You can set a maximum depth at which the auto range feature

searches for the bottom. A lower limit acquires data about the

bottom faster than a higher limit.

From a sonar screen, select > Sonar Setup > Bottom

Search Limit.

Select a range.

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.

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.

4 Sonar

Garmin striker 5dv [8/16] Setting the interference

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