Garmin ECHOMAP 70 Series Owner's Manual - Page 28

Browse online or download pdf Owner's Manual for Marine GPS System Garmin ECHOMAP 70 Series. Garmin ECHOMAP 70 Series 50 pages. Flat-mount kit
Also for Garmin ECHOMAP 70 Series: Quick Start Manual (4 pages), Owner's Manual (38 pages), Owner's Manual (44 pages), Owner's Manual (30 pages), Installation Instructions Manual (6 pages), Owner's Manual (50 pages), Installation Instructions (4 pages), Installation Instructions (4 pages), Installation Instructions Manual (34 pages)

Print Page

depth range of the magnified area, and select Zoom In or

Zoom Out to increase or decrease the magnification of

the magnified area.

• To set the depth and zoom automatically, select Auto.

• To cancel the zoom, select No Zoom.

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 MENU > Sonar Setup > Scroll

Speed.

Select an option:

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

ground or water speed data, 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

option provides a good balance between a quickly

scrolling image and targets that are less distorted.

Adjusting the Range of the Depth or Width Scale

You can adjust the range of the depth scale traditional and

Garmin ClearVü sonar views and the range of the width scale

for the SideVü sonar view.

Allowing the device to adjust the range automatically keeps the

bottom within the lower or outer third of the sonar screen, and

can be useful for tracking a bottom that has minimal or moderate

terrain changes.

Manually adjusting the range enables you to view a specified

range, which can be useful for tracking a bottom that has large

terrain changes, such as a drop-offs or cliffs. The bottom can

appear on the screen as long as it appears within the range you

have set.

From a sonar view, select MENU > Range.

Select an option:

• To allow the chartplotter to adjust the range automatically,

select Auto.

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

Down.

TIP: From the sonar screen, you can select

manually adjust the range.

TIP: When viewing multiple sonar screens, you can select

SELECT to choose the active screen.

Sonar Appearance Settings

From a sonar view, select MENU > Sonar Setup >

Appearance.

Color Scheme: Sets the color scheme.

Edge: Highlights the strongest signal from the bottom to help

define the hardness or softness of the signal.

A-Scope: Displays a vertical flasher along the right side of the

screen that shows instantaneously the range to targets along

a scale.

Pic. Advance: 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 1/1 setting draws one column of information on the

screen per sounder return. The 2/1 setting draws two

columns of information on the screen per sounder return, and

so on for the 4/1 and 8/1 settings.

Fish Symbols: Sets how the sonar interprets suspended

targets.

Sonar Alarms

NOTE: Not all options are available on all transducers.

From an applicable sonar view, select MENU > Sonar Setup >

Alarms.

You can also open the sonar alarms by selecting Settings >

Alarms > Sonar.

Shallow Water: Sets an alarm to sound when the depth is less

than the specified value.

Deep Water: Sets an alarm to sound when the depth is greater

than the specified value.

FrontVü Alarm: Sets an alarm to sound when the depth in front

of the vessel is less than the specified value, which can help

you avoid running aground

page

transducers.

Water Temp.: Sets an alarm to sound when the transducer

reports a temperature that is 2°F (1.1°C) above or below the

specified temperature.

Contour: Sets an alarm to sound when the transducer detects a

suspended target within the specified depth from the surface

of the water and from the bottom.

Fish: Sets an alarm to sound when the device detects a

suspended target.

•

detected.

•

fish are detected.

•

detected.

Advanced Sonar Settings

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

transducers.

From a sonar view, select MENU > Sonar Setup > Advanced.

Interference: Adjusts the sensitivity to reduce the effects of

interference from nearby sources of noise.

The lowest interference setting that achieves the desired

improvement should be used to remove interference from the

screen. Correcting installation issues that cause noise is the

best way to eliminate interference.

Surface Noise: Hides surface noise to help reduce clutter.

Wider beam widths (lower frequencies) can show more

targets, but can generate more surface noise.

Color Gain: See

TVG: Adjusts the appearance of returns to compensate for

weakened sonar signals in deeper water, and reduces the

appearance of noise near the surface. When the value of this

setting is increased, the colors associated with low-level

noise and fish targets appear more consistent through

various water depths. This setting also reduces the noise

near the surface of the water.

Transducer Installation Settings

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

transducers.

From a sonar view, select MENU > Sonar Setup > Installation.

(Setting the FrontVü Depth Alarm,

24). This alarm is available only with Panoptix FrontVü

sets the alarm to sound when fish of all sizes are

sets the alarm to sound only when medium or large

sets the alarm to sound only when large fish are

Adjusting the Level of Detail, page

21.

Sonar Fishfinder