Garmin Striker 4 Manuale Proprietario

• To display lower-sensitivity sonar returns with less noise 

automatically, select Auto Low.

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.

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 

À

 through low 

Á

, medium 

Â

, and high 

Ã

, 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.

From a sonar screen, select 

 > Sonar Setup > Noise 

Reject > Interference.

Select an option.

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.

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.

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.

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.

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.

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 

.

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.

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