Bedienungsanleitung Garmin GPSMAP 741 (Seite 79 von 100) (Englisch)

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GPSMAP 700 Series Owner’s Manual 75

Sonar

Showing Surface Noise

You can set whether the sonar returns near the surface of the water appear. Hide surface noise to help reduce

clutter.

From the Home screen, select  >  >  > .

Showing and Conguring a Depth Line

You can set whether a quick-reference depth line appears.

1. From the Home screen, select  >  >  > .

2. Touch and drag the reference line to set the depth of the line.

Showing the A-Scope

The A-Scope is a vertical asher along the right side of the screen that shows instantaneously the range to

targets along a scale.

From the Home screen, select  >  > > .

Setting Pic Advance

The picture advance setting 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  setting draws one column of information on the screen per sounder return. The  setting draws two

columns of information on the screen per sounder return, and so on for the  and  settings.

1. From the Home screen, select  >  > .

2. Select a picture advance setting.

Showing Overlay Numbers

You must have a water-speed sensor or a speed-capable transducer to show water-speed information, and

you must have a water-temperature sensor or a temperature-capable transducer to show water-temperature

information.

You can set water temperature, unit voltage, water speed (if your transducer is capable), and navigation

information to appear automatically on the Sonar screens. The navigation information always includes GPS

speed and GPS heading, and includes bearing and off-course information while navigating.

1. From the Home screen, select  >  > .

2. Complete an action:

• Select  > .

• Select  > .

• Select  > .

• Select  > .

• Select  > .

If you select , and if the information is available, the data appears on the Sonar screen.

Conguring the Appearance of Suspended Targets

You can set how the sonar interprets suspended targets.

1. From the Home screen, select  >  >  > .

2. Complete an action:

• Select to show suspended targets as symbols with background sonar information.

• Select to show suspended targets as symbols with background sonar information and target depth

information.

• Select to show suspended targets as symbols.

• Select to show suspended targets as symbols with target depth information.

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