Manual Garmin echoMAP 70dv (page 17 of 30) (English)

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The adjustments you can make to each sonar view vary

depending on the view you are in and the chartplotter model and

transducer you have connected.

Sonar Views

The sonar views available vary depending on the type of

transducer and optional sounder module connected to the

chartplotter. For example, you can view the Split Frequency

view only if you have a dual-frequency transducer connected.

There are four basic styles of sonar views available: a full-

screen view, a split-screen view that combines two or more

views, a split-zoom view, and a split-frequency view that

displays two different frequencies. You can customize the

settings for each view in the screen. For example, if you are

viewing the split-frequency view, you can separately adjust the

gain for each frequency.

Full-Screen Sonar View

There are several full-screen views available, depending on the

equipment connected. The full-screen sonar views show a large

image of the sonar readings from a transducer. The range scale

along the right side of the screen shows the depth of detected

objects as the screen scrolls from the right to the left.

Depth information

Suspended targets or fish

Bottom of the body of water

DownVü Sonar View

NOTE: Not all models support DownVü sonar technology and

transducers.

NOTE: To receive DownVü scanning sonar, you need a

compatible chartplotter or fishfinder and a compatible

transducer.

DownVü high-frequency sonar provides a clearer picture below

the boat, providing a more detailed representation of structures

the boat is passing over.

Traditional transducers emit a conical beam. The DownVü

scanning sonar technology emits a narrow beam, similar to the

shape of the beam in a copying machine. This beam provides a

clearer, picture-like image of what is beneath the boat.

SideVü Sonar View

NOTE: Not all models support SideVü sonar and scanning

transducers.

NOTE: To receive SideVü scanning sonar, you need a

compatible chartplotter and a compatible transducer.

SideVü scanning sonar technology shows you a picture of what

lies to the sides of the boat. You can use this as a search tool to

find structures and fish.

Left side of the boat

Right side of the boat

The transducer on your vessel

Trees

Old tires

Logs

Distance from the side of the boat

SideVü/DownVü Scanning Technology

Instead of a more common conical beam, the SideVü/DownVü

transducer uses a flat beam to scan the water and ground to the

sides of your boat.

Split-Screen Sonar Views

The split-screen sonar views enable you to view different

combinations of sonar data simultaneously. For example, you

can view traditional sonar and DownVü sonar views in one

screen. You can edit the layout of a split-screen sonar view to

resize the window and rearrange the data.

The scroll rates of the traditional and DownVü sonar views are

synchronized to make the split-screen views easier to read.

Split-Zoom Sonar View

The split-zoom sonar view shows a full-view graph of sonar

readings, and a magnified portion of that graph, on the same

screen.

Split-Frequency Sonar View

In the split-frequency sonar view, one side of the screen shows

a full-view graph of high frequency sonar data, and the other

side of the screen shows a full-view graph of lower frequency

sonar data.

NOTE: The split-frequency sonar view requires the use of a

dual-frequency transducer.

Selecting the Transducer Type

Before you can select the transducer type, you must know what

kind of transducer you have.

If you are connecting a transducer that was not included with the

chartplotter, you may need to set the transducer type to make

the sonar function properly. If the device automatically detected

your transducer, this option does not appear.

Sonar 13

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Garmin echoMAP 70dv Manual

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