Manual Garmin echoMAP 73dv (page 17 of 30) (English)

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echoMAP

™

40/50/70/90 Series

Owner’s Manual

December 2014

Printed in Taiwan 190-01834-00_0B

right to change or improve its products and to make changes in the content of this manual without obligation to notify any person or organization of such

changes or improvements. Go to www.garmin.com for current updates and supplemental information concerning the use of this product.

Garmin

, the Garmin logo, BlueChart

, g2 Vision

, and Ultrascroll

are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries.

echoMAP

™

, HomePort

™

, and LakeVü

™

are trademarks of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the express permission of

Garmin.

microSD

™

and the microSDHC logo are trademarks of SD-3C, LLC. NMEA

is a registered trademark of the National Marine Electronics Association. Windows

is a registered trademark of Microsoft Corporation in the United States and other countries. Other trademarks and trade names are those of their respective

owners.

Table of Contents

Introduction.....................................................................1

Front View...................................................................................1

Device Keys........................................................................... 1

Downloading the Manuals.......................................................... 1

Manual Conventions................................................................... 1

Getting More Information............................................................ 1

Inserting Memory Cards............................................................. 1

Loading the New Software on a Memory Card........................... 1

Updating the Device Software.................................................... 1

GPS Satellite Signals..................................................................2

Adjusting the Backlight............................................................... 2

Adjusting the Color Mode........................................................... 2

Customizing the Home Screen................................................... 2

Charts and 3D Chart Views........................................... 2

Navigation Chart and Offshore Fishing Chart............................. 2

Zooming In and Out of the Chart........................................... 2

Panning the Chart with the Keys........................................... 2

Selecting an Item on the Map Using the Device Keys........... 2

Measuring a Distance on the Chart....................................... 2

Chart Symbols....................................................................... 2

Navigating to a Point on the Chart......................................... 3

Viewing Location and Object Information on a Chart............ 3

Viewing Details about Navaids.............................................. 3

Premium Charts.......................................................................... 3

Viewing Tide Station Information........................................... 3

Showing Satellite Imagery on the Navigation Chart.............. 4

Viewing Aerial Photos of Landmarks..................................... 4

Automatic Identification System..................................................4

AIS Targeting Symbols.......................................................... 4

Heading and Projected Course of Activated AIS Targets...... 4

Showing AIS Vessels on a Chart or 3D Chart View.............. 5

Activating a Target for an AIS Vessel.................................... 5

Viewing a List of AIS Threats................................................. 5

Setting the Safe-Zone Collision Alarm................................... 5

AIS Distress Signals.............................................................. 5

Turning Off AIS Reception..................................................... 5

Chart and 3D Chart View Settings.............................................. 6

Navigation and Fishing Chart Setup...................................... 6

Waypoints and Tracks Settings on the Charts and Chart

Views..................................................................................... 6

Overlay Numbers Settings..................................................... 6

Showing a Navigation Inset................................................... 6

Chart Appearance Settings.................................................... 6

Setting the Heading and Course Over Ground Lines............ 7

Other Vessels Settings on the Charts and Chart Views........ 7

Fish Eye 3D Settings............................................................. 7

Navigation with a Chartplotter...................................... 7

Basic Navigation Questions........................................................ 8

Destinations................................................................................ 8

Searching for a Destination by Name.................................... 8

Selecting a Destination Using the Navigation Chart.............. 8

Searching for Destination Using User Data........................... 8

Searching for a Marine Services Destination......................... 8

Courses...................................................................................... 8

Setting and Following a Direct Course Using Go To............. 8

Stopping Navigation................................................................... 9

Waypoints................................................................................... 9

Marking Your Present Location as a Waypoint...................... 9

Creating a Waypoint at a Different Location.......................... 9

Marking an MOB or SOS Location.........................................9

Viewing a List of all Waypoints.............................................. 9

Editing a Saved Waypoint...................................................... 9

Browsing for and Navigating to a Saved Waypoint................ 9

Deleting a Waypoint or an MOB

............................................ 9

Deleting All Waypoints........................................................... 9

Routes........................................................................................ 9

Creating and Navigating a Route from Your Present

Location

................................................................................. 9

Creating and Saving a Route................................................. 9

Viewing a List of Routes........................................................ 9

Editing a Saved Route........................................................... 9

Browsing for and Navigating a Saved Route....................... 10

Browsing for and Navigating Parallel to a Saved Route...... 10

Deleting a Saved Route....................................................... 10

Deleting All Saved Routes................................................... 10

Tracks....................................................................................... 10

Showing Tracks................................................................... 10

Setting the Color of the Active Track................................... 10

Saving the Active Track....................................................... 10

Viewing a List of Saved Tracks............................................ 10

Editing a Saved Track.......................................................... 10

Saving a Track as a Route...................................................10

Browsing for and Navigating a Recorded Track.................. 10

Deleting a Saved Track........................................................10

Deleting All Saved Tracks.................................................... 10

Retracing the Active Track................................................... 11

Clearing the Active Track..................................................... 11

Managing the Track Log Memory During Recording........... 11

Configuring the Recording Interval of the Track Log........... 11

Deleting All Saved Waypoints, Routes, and Tracks................. 11

Auto Guidance.......................................................................... 11

Setting and Following an Auto Guidance Path.................... 11

Creating an Auto Guidance Path......................................... 11

Filtering a List of Routes and Auto Guidance Paths............ 11

Reviewing an Auto Guidance Path...................................... 11

Adjusting an Auto Guidance Path........................................ 11

Canceling an Auto Guidance Calculation in Progress......... 11

Setting a Timed Arrival.........................................................11

Adjusting the Distance from Shore...................................... 11

Auto Guidance Line Configurations..................................... 12

Combinations............................................................... 12

Selecting a Combination........................................................... 12

Customizing a Combination Screen......................................... 12

Adding a Custom Combination Screen.................................... 12

Sonar............................................................................. 12

Sonar Views..............................................................................13

Full-Screen Sonar View....................................................... 13

DownVü Sonar View............................................................ 13

SideVü Sonar View.............................................................. 13

Split-Screen Sonar Views.................................................... 13

Split-Zoom Sonar View........................................................ 13

Split-Frequency Sonar View................................................ 13

Selecting the Transducer Type................................................. 13

Creating a Waypoint on the Sonar Screen Using the Device

Keys.......................................................................................... 14

Pausing the Sonar Display....................................................... 14

Viewing Sonar History.............................................................. 14

Customizing the Overlay Numbers........................................... 14

Adjusting the Level of Detail..................................................... 14

Adjusting the Color Intensity..................................................... 14

Adjusting the Range of the Depth or Width Scale.................... 14

Setting the Zoom Level on the Sonar Screen........................... 14

Setting the Scroll Speed........................................................... 14

Sonar Frequencies................................................................... 15

Selecting Frequencies......................................................... 15

Creating a Frequency Preset............................................... 15

Turning On the A-Scope........................................................... 15

Sonar Setup.............................................................................. 15

Sonar Settings..................................................................... 15

Table of Contents i

Sonar Appearance Settings................................................. 15

Advanced Sonar Settings.................................................... 15

Sonar Installation Settings................................................... 16

Sonar Alarm Settings........................................................... 16

Sonar Recordings..................................................................... 16

Recording the Sonar Display............................................... 16

Stopping the Sonar Recording............................................. 16

Deleting a Sonar Recording................................................. 16

Playing Sonar Recordings................................................... 16

Gauges and Almanac Data.......................................... 16

Viewing the Compass............................................................... 16

Viewing Trip Gauges................................................................ 16

Resetting Trip Gauges......................................................... 16

Tide, Current, and Celestial Information................................... 16

Tide Station Information....................................................... 16

Current Station Information.................................................. 16

Celestial Information............................................................ 16

Viewing Tide Station, Current Station, or Celestial Information

for a Different Date...............................................................17

Viewing Information for a Different Tide or Current Station. 17

Digital Selective Calling............................................... 17

Chartplotter and NMEA® 0183 VHF Radio Functionality......... 17

Turning On DSC....................................................................... 17

DSC List....................................................................................17

Viewing the DSC List........................................................... 17

Adding a DSC Contact......................................................... 17

Incoming Distress Calls............................................................ 17

Navigating to a Vessel in Distress....................................... 17

Position Tracking...................................................................... 17

Viewing a Position Report.................................................... 17

Navigating to a Tracked Vessel........................................... 17

Creating a Waypoint at the Position of a Tracked Vessel.... 17

Editing Information in a Position Report.............................. 17

Deleting a Position-Report Call............................................ 17

Viewing Vessel Trails on the Chart...................................... 17

Individual Routine Calls............................................................ 18

Selecting a DSC Channel.................................................... 18

Making an Individual Routine Call....................................... 18

Making an Individual Routine Call to an AIS Target............ 18

Chartplotter Data Management................................... 18

Copying Waypoints, Routes, and Tracks from HomePort to a

Chartplotter............................................................................... 18

Copying Data from a Memory Card.......................................... 18

Copying Waypoints, Routes, and Tracks to a Memory Card.... 18

Selecting a File Type for Third-Party Waypoints and Routes... 18

Sharing Waypoints and Routes Across Devices...................... 18

Copying Built-In Maps to a Memory Card................................. 18

Backing Up Data to a Computer............................................... 18

Restoring Backup Data to a Chartplotter.................................. 19

Saving System Information to a Memory Card......................... 19

Device Configuration................................................... 19

Turning On the Chartplotter Automatically............................... 19

System Settings........................................................................ 19

Display Settings................................................................... 19

GPS Settings....................................................................... 19

Viewing the Event Log......................................................... 19

Viewing System Software Information................................. 19

My Vessel Settings................................................................... 19

Setting the Keel Offset......................................................... 19

Setting the Water Temperature Offset................................. 20

Communications Settings......................................................... 20

NMEA 0183..........................................................................20

Setting Alarms.......................................................................... 20

Navigation Alarms................................................................ 20

System Alarms..................................................................... 20

Units Settings

............................................................................20

Navigation Settings................................................................... 21

Other Vessel Settings............................................................... 21

Restoring the Original Chartplotter Factory Settings................ 21

Appendix....................................................................... 21

Registering Your Device........................................................... 21

Cleaning the Screen................................................................. 21

Screenshots.............................................................................. 21

Capturing Screenshots........................................................ 21

Copying Screenshots to a Computer................................... 21

Troubleshooting........................................................................ 21

My device will not acquire GPS signals............................... 21

My device will not turn on or keeps turning off..................... 21

My device is not creating waypoints in the correct location. 21

NMEA 0183 Information........................................................... 22

Software License Agreement................................................... 22

Index.............................................................................. 23

ii Table of Contents

Introduction

WARNING

See the Important Safety and Product Information guide in the

product box for product warnings and other important

information.

Front View

Power key

Device keys

microSD

™

memory card slot

Automatic backlight sensor

Device Keys

Turns on and off the device when held.

Adjusts the backlight and color mode when quickly pressed

and released.

Zooms out of a chart or view.

Zooms in to a chart or view.

Scrolls, highlights options, and moves the cursor.

SELECT Acknowledges messages and selects options.

BACK Returns to the previous screen.

MARK Saves the present location as a waypoint.

HOME Returns to the Home screen.

MENU Opens a menu of options for the page, when applicable.

Closes a menu, when applicable.

Downloading the Manuals

You can get the latest owner's manual and translations of

manuals from the web.

Go to www.garmin.com/support.

Select Manuals.

Follow the on-screen instructions to download the manual for

your product.

Manual Conventions

In this manual, the term “select” is used to describe these

actions.

• Using the arrow keys to highlight a menu item, and then

pressing SELECT (for hard key devices only).

• Pressing a key, such as SELECT or MENU.

When you are instructed to select multiple items in a series,

small arrows appear in the text. For example, "select MENU >

Add," indicates that you need to select the MENU item or hard

key and then select the Add item.

The images in this manual are for reference only and may not

match your device exactly.

Getting More Information

If you have any questions about your device, you can contact

Garmin

Product Support.

The website, www.garmin.com/support, offers many different

troubleshooting tips to help resolve most issues and answer

most questions.

• Frequently-asked questions (FAQs)

• Software updates

• Owner's and installation manuals

• Service alerts

• Video

• Contact numbers and addresses

Inserting Memory Cards

You can use optional memory cards in the chartplotter. Map

cards allow you to view high-resolution satellite imagery and

aerial reference photos of ports, harbors, marinas, and other

points of interest. You can use blank memory cards to record

sonar data and transfer data such as waypoints, routes, and

tracks to another compatible Garmin chartplotter or a computer.

Open the access flap on the front of the chartplotter.

Insert the memory card.

Press the card in until it clicks.

Close the door.

Loading the New Software on a Memory

Card

Insert a memory card into the card slot on the computer.

Go to www.garmin.com/support/software/marine.html.

Select Download next to "Chartplotters with SD card.".

Read and agree to the terms.

Select Download.

Select Run.

Select the drive associated with the memory card, and select

Next > Finish.

Updating the Device Software

Before you can update the software, you must obtain a

software-update memory card or load the latest software onto a

memory card.

Turn on the chartplotter.

After the home screen appears, insert the memory card into

the card slot.

NOTE: In order for the software update instructions to

appear, the device must be fully booted before the card is

inserted.

Follow the on-screen instructions.

Introduction 1

Wait several minutes while the software update process

completes.

The device returns to normal operation after the software

update process is complete.

Remove the memory card.

NOTE: If the memory card is removed before the device

restarts fully, the software update is not complete.

GPS Satellite Signals

When you turn on the chartplotter, the GPS receiver must collect

satellite data and establish the current location. When the

chartplotter acquires satellite signals, appears at the top of

the Home screen. When the chartplotter loses satellite signals,

disappears and a flashing question mark appears over on

the chart.

For more information about GPS, go to www.garmin.com

/aboutGPS.

Adjusting the Backlight

Select Settings > System > Display > Backlight.

TIP: Press from any screen to open the backlight settings.

Adjust the backlight.

Adjusting the Color Mode

Select Settings > System > Display > Color Mode.

TIP: Press from any screen to access the color settings.

Select an option.

Customizing the Home Screen

You can add items to and rearrange items on the Home screen.

From the Home screen, select Customize Home.

Select an option:

• To rearrange an item, select Rearrange, select the item to

move, and select the new location.

• To add an item to the Home screen, select Add, and

select the new item.

• To remove an item you have added to the Home screen,

select Remove, and select the item.

Charts and 3D Chart Views

The charts and 3D chart views that are available depend on the

map data and accessories used.

You can open the charts and 3D chart views by selecting

Charts.

Navigation Chart: Shows navigation data available on your pre-

loaded maps and from supplemental maps, if available. The

data includes buoys, lights, cables, depth soundings,

marinas, and tide stations in an overhead view.

Perspective 3D: Provides a view from above and behind the

boat (according to your course) and provides a visual

navigation aid. This view is helpful when navigating tricky

shoals, reefs, bridges, or channels, and is beneficial when

trying to identify entry and exit routes in unfamiliar harbors or

anchorages.

Mariner’s Eye 3D: Shows a detailed, three-dimensional view

from above and behind the boat (according to your course)

and provides a visual navigation aid. This view is helpful

when navigating tricky shoals, reefs, bridges, or channels,

and when trying to identify entry and exit routes in unfamiliar

harbors or anchorages.

NOTE: Mariner's Eye 3D and Fish Eye 3D chart views are

available with premium charts, in some areas.

Fish Eye 3D: Provides an underwater view that visually

represents the sea floor according to the chart information.

When a sonar transducer is connected, suspended targets

(such as fish) are indicated by red, green, and yellow

spheres. Red indicates the largest targets and green

indicates the smallest.

Fishing Chart: Provides a detailed view of the bottom contours

and depth soundings on the chart. This chart removes

navigational data from the chart, provides detailed

bathymetric data, and enhances bottom contours for depth

recognition. This chart is best for offshore deep-sea fishing.

Navigation Chart and Offshore Fishing Chart

NOTE: The offshore Fishing chart is available with premium

charts, in some areas.

The Navigation and Fishing charts allow you to plan your

course, view map information, and follow a route. The Fishing

chart is for offshore fishing.

To open the Navigation chart, select Charts > Navigation

Chart.

To open the Fishing chart, select Charts > Fishing Chart.

Zooming In and Out of the Chart

The zoom level is indicated by the scale number at the bottom of

the chart. The bar under the scale number represents that

distance on the chart.

• Select to zoom out.

• Select to zoom in.

Panning the Chart with the Keys

You can move the chart to view an area other than your present

location.

From the chart, use the arrow keys.

Select BACK to stop panning and return the screen to your

present location.

NOTE: To pan from a combination screen, select SELECT.

Selecting an Item on the Map Using the Device Keys

From a chart or 3D chart view, select , , , or to move

the cursor.

Select SELECT.

Measuring a Distance on the Chart

Select Measure Distance.

A push pin appears on the screen at your present location.

The distance and angle from the pin is listed in the corner.

TIP: To reset the pin and measure from the current location of

the cursor, select SELECT.

Chart Symbols

This table contains some of the common symbols you might see

on the detailed charts.

Icon Description

Buoy

Information

Marine services

2 Charts and 3D Chart Views

Icon Description

Tide station

Current station

Overhead photo available

Perspective photo available

Other features common to most charts include depth contour

lines, intertidal zones, spot soundings (as depicted on the

original paper chart), navigational aids and symbols,

obstructions, and cable areas.

Navigating to a Point on the Chart

CAUTION

The Auto Guidance feature is based on electronic chart

information. That data does not ensure obstacle and bottom

clearance. Carefully compare the course to all visual sightings,

and avoid any land, shallow water, or other obstacles that may

be in your path.

When using Go To, a direct course and a corrected course may

pass over land or shallow water. Use visual sightings, and steer

to avoid land, shallow water, and other dangerous objects.

NOTE: The offshore Fishing chart is available with premium

charts, in some areas.

NOTE: Auto Guidance is available with premium charts, in some

areas.

From the Navigation chart or Fishing chart, select a location.

If necessary, select SELECT.

Select Navigate To.

Select an option:

• To navigate directly to the location, select Go To.

• To create a route to the location, including turns, select

Route To.

• To use Auto Guidance, select Guide To.

Review the course indicated by the magenta line.

NOTE: When using Auto Guidance, a gray segment within

any part of the magenta line indicates that Auto Guidance

cannot calculate part of the Auto Guidance line. This is due to

the settings for minimum safe water depth and minimum safe

obstacle height.

Follow the magenta line, steering to avoid land, shallow

water, and other obstacles.

Viewing Location and Object Information on a Chart

You can view information about a location or an object on the

Navigation chart or the Fishing chart.

NOTE: The offshore Fishing chart is available with premium

charts, in some areas.

From the Navigation chart or Fishing chart, select a location

or object.

A list of options appears along the right side of the chart. The

options that appear vary based on the location or object you

selected.

Select an option:

• To navigate to the selected location, select Navigate To.

• To mark a waypoint at the cursor location, select New

Waypoint.

• To view the distance and bearing of the object from your

current location, select Measure Distance.

The distance and bearing appear on the screen. Select

SELECT to measure from a location other than your

current location.

• To view tide, current, celestial, chart notes, or local

services information near the cursor, select Information.

Viewing Details about Navaids

From the Navigation chart, Fishing chart, Perspective 3D chart

view, or Mariner’s Eye 3D chart view, you can view details about

various types of navigation aids, including beacons, lights, and

obstructions.

NOTE: The offshore Fishing chart is available with premium

charts, in some areas.

NOTE: Mariner's Eye 3D and Fish Eye 3D chart views are

available with premium charts, in some areas.

From a chart or 3D chart view, select a navaid.

Select the name of the navaid.

Premium Charts

CAUTION

The Auto Guidance feature is based on electronic chart

information. That data does not ensure obstacle and bottom

clearance. Carefully compare the course to all visual sightings,

and avoid any land, shallow water, or other obstacles that may

be in your path.

NOTE: Not all models support all charts.

Optional premium charts, such as BlueChart

g2 Vision

, allow

you to get the most out of your chartplotter. In addition to

detailed marine charting, premium charts may contain these

features, which are available in some areas.

Mariner’s Eye 3D: Provides a view from above and behind the

boat for a three-dimensional navigation aid.

Fish Eye 3D: Provides an underwater, three-dimensional view

that visually represents the sea floor according to the

information on the chart.

Fishing Charts: Shows the chart with enhanced bottom

contours and without navigational data. This chart works well

for offshore deep-sea fishing.

High Resolution Satellite Imagery: Provides high-resolution

satellite images for a realistic view of the land and water on

the Navigation chart (Showing Satellite Imagery on the

Navigation Chart).

Aerial Photos: Shows marinas and other navigationally

significant aerial photos to help you visualize your

surroundings (Viewing Aerial Photos of Landmarks).

Detailed Roads and POI data: Shows detailed road and point

of interest (POI) data, which includes highly detailed coastal

roads and POIs such as restaurants, lodging, and local

attractions.

Auto Guidance: Uses specified safe depth, safe height, and

chart data to determine the best course to your destination.

Auto Guidance is available when you navigate to a

destination using Guide To.

Viewing Tide Station Information

on the chart indicates a tide station. You can view a detailed

graph for a tide station to help predict the tide level at different

times or on different days.

NOTE: This feature is available with premium charts, in some

areas.

From the Navigation chart or Fishing chart, select a tide

station.

Tide direction and tide level information appear near .

Select the station name.

Animated Tide and Current Indicators

NOTE: This feature is available with premium charts, in some

areas.

Charts and 3D Chart Views 3

You can view indicators for animated tide station and current

direction on the Navigation chart or the Fishing chart. You must

also enable animated icons in the chart settings (Showing and

Configuring Tides and Currents).

An indicator for a tide station appears on the chart as a vertical

bar graph with an arrow. A red arrow pointing downward

indicates a falling tide, and a blue arrow pointing upward

indicates a rising tide. When you move the cursor over the tide

station indicator, the height of the tide at the station appears

above the station indicator.

Current direction indicators appear as arrows on the chart. The

direction of each arrow indicates the direction of the current at a

specific location on the chart. The color of the current arrow

indicates the range of speed for the current at that location.

When you move the cursor over the current direction indicator,

the specific current speed at the location appears above the

direction indicator.

Color Current Speed Range

Yellow 0 to 1 knot

Orange 1 to 2 knots

Red 2 or more knots

Showing and Configuring Tides and Currents

NOTE: This feature is available with premium charts, in some

areas.

You can show static or animated tide and current station

indicators on the Navigation chart or Fishing chart.

From the Navigation or Fishing chart, select MENU > Chart

Setup > Tides & Currents.

Select an option:

• To show current station indicators and tide station

indicators on the chart, select On.

• To show animated tide station indicators and animated

current direction indicators on the chart, select Animated.

Showing Satellite Imagery on the Navigation Chart

NOTE: This feature is available with premium charts, in some

areas.

You can overlay high-resolution satellite images on the land or

on both land and sea portions of the Navigation chart.

NOTE: When enabled, high-resolution satellite images are

present only at lower zoom levels. If you cannot see high-

resolution images in your optional chart region, you can select

to zoom in. You also can set the detail level higher by changing

the map zoom detail.

From the Navigation chart, select MENU > Chart Setup >

Satellite Photos.

Select an option:

• Select Land Only to show standard chart information on

the water, with photos overlaying the land.

• Select Photo Map Blend to show photos on both the

water and the land at a specified opacity. Use the slider

bar to adjust the photo opacity. The higher you set the

percentage, the more the satellite photos cover both land

and water.

Viewing Aerial Photos of Landmarks

Before you can view aerial photos on the Navigation chart, you

must turn on the Photo setting in the chart setup.

NOTE: This feature is available with premium charts, in some

areas.

You can use aerial photographs of landmarks, marinas, and

harbors to help orient yourself to your surroundings or to

acquaint yourself with a marina or a harbor prior to arrival.

From the Navigation chart, select a camera icon:

• To view an overhead photo, select .

• To view a perspective photo, select . The photo was

taken from the location of the camera, pointed in the

direction of the cone.

Select Aerial Photo.

Automatic Identification System

The Automatic Identification System (AIS) enables you to

identify and track other vessels, and alerts you to area traffic.

When connected to an external AIS device, the chartplotter can

show some AIS information about other vessels that are within

range, that are equipped with a transponder, and that are

actively transmitting AIS information.

The information reported for each vessel includes the Maritime

Mobile Service Identity (MMSI), location, GPS speed, GPS

heading, time that has elapsed since the last position of the

vessel was reported, nearest approach, and time to the nearest

approach.

Some chartplotter models also support Blue Force Tracking.

Vessels being tracked with Blue Force Tracking are indicated on

the chartplotter with a blue-green color.

AIS Targeting Symbols

Symbol Description

AIS vessel. The vessel is reporting AIS information. The

direction in which the triangle is pointing indicates the

direction in which the AIS vessel is moving.

Target is selected.

Target is activated. The target appears larger on the chart. A

green line attached to the target indicates the heading of the

target. The MMSI, speed, and direction of the vessel appear

beneath the target, if the details setting has been set to Show.

If the AIS transmission from the vessel is lost, a message

banner appears.

Target is lost. A green X indicates that the AIS transmission

from the vessel is lost, and the chartplotter displays a

message banner asking whether the vessel should continue

to be tracked. If you discontinue vessel tracking, the lost

target symbol disappears from the chart or the 3D chart view.

Dangerous target in range. The target flashes while an alarm

sounds and a message banner appears. After the alarm has

been acknowledged, a solid red triangle with a red line

attached to it indicates the location and the heading of the

target. If the safe-zone collision alarm has been set to Off, the

target flashes, but the audible alarm does not sound and the

alarm banner does not appear. If the AIS transmission from

the vessel is lost, a message banner appears.

Dangerous target is lost. A red X indicates that the AIS

transmission from the vessel is lost, and the chartplotter

displays a message banner asking whether the vessel should

continue to be tracked. If you discontinue vessel tracking, the

lost dangerous target symbol disappears from the chart or the

3D chart view.

The location of this symbol indicates the closest point of

approach to a dangerous target, and the numbers near the

symbol indicate the time to the closest point of approach to

that target.

NOTE: Vessels being tracked with the Blue Force Tracking

feature are indicated with a blue-green color regardless of their

status.

Heading and Projected Course of Activated AIS

Targets

When heading and course over ground information are provided

by an activated AIS target, the heading of the target appears on

a chart as a solid line attached to the AIS target symbol. A

heading line does not appear on a 3D chart view.

The projected course of an activated AIS target appears as a

dashed line on a chart or a 3D chart view. The length of the

projected course line is based on the value of the projected

heading setting. If an activated AIS target is not transmitting

speed information, or if the vessel is not moving, a projected

4 Charts and 3D Chart Views

course line does not appear. Changes in the speed, course over

ground, or rate of turn information transmitted by the vessel can

impact the calculation of the projected course line.

When course over ground, heading, and rate of turn information

are provided by an activated AIS target, the projected course of

the target is calculated based on the course over ground and the

rate of turn information. The direction in which the target is

turning, which is also based on the rate of turn information, is

indicated by the direction of the barb at the end of the heading

line. The length of the barb does not change.

When course over ground and heading information are provided

by an activated AIS target, but rate of turn information is not

provided, the projected course of the target is calculated based

on the course over ground information.

Showing AIS Vessels on a Chart or 3D Chart View

Before you can use AIS, you must connect the chartplotter to an

external AIS device and receive active transponder signals from

other vessels.

You can configure how other vessels appear on a chart or on a

3D chart view. The display range configured for one chart or one

3D chart view are applied only to that chart or to that 3D chart

view. The details, projected heading, and trails settings

configured for one chart or one 3D chart view are applied to all

charts and to all 3D chart views.

From a chart or 3D chart view, select MENU > Other

Vessels > AIS Display Setup.

Select an option:

• To indicate the distance from your location in which AIS

vessels appear, select Display Range, and select a

distance.

• To show details about AIS-activated vessels, select

Details > Show.

• To set the projected heading time for AIS-activated

vessels, select Projected Heading, and enter the time.

• To show the tracks of AIS vessels, select Trails, and

select the length of the track that appears using a trail.

Activating a Target for an AIS Vessel

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel > Activate Target.

Viewing Information about a Targeted AIS Vessel

You can view the AIS signal status, MMSI, GPS speed, GPS

heading, and other information that is reported about a targeted

AIS vessel.

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel.

Deactivating a Target for an AIS Vessel

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel > Deactivate Target.

Viewing a List of AIS Threats

From a chart or 3D chart view, select MENU > Other

Vessels > AIS List.

Setting the Safe-Zone Collision Alarm

Before you can set a safe-zone collision alarm, you must have a

compatible chartplotter connected to an AIS device.

The safe-zone collision alarm is used only with AIS. The safe

zone is used for collision avoidance, and can be customized.

Select Settings > Alarms > AIS > AIS Alarm > On.

A message banner appears and an alarm sounds when an

AIS-activated vessel enters the safe-zone area around your

boat. The object is also labeled as dangerous on the screen.

When the alarm is off, the message banner and audible

alarm are disabled, but the object is still labeled as

dangerous on the screen.

Select Range.

Select a distance for the safe-zone radius around your

vessel.

Select Time To.

Select a time at which the alarm will sound if a target is

determined to intersect the safe zone.

For example, to be notified of a pending intersection 10

minutes before it will likely occur, set Time To to 10, and the

alarm will sound 10 minutes before the vessel intersects the

safe zone.

AIS Distress Signals

Self-contained AIS distress signal devices transmit emergency

position reports when activated. The chartplotter can receive

signals from Search and Rescue Transmitters (SART),

Emergency Position Indicating Radio Beacons (EPIRB), and

other man overboard signals. Distress signal transmissions are

different than standard AIS transmissions, so they appear

differently on the chartplotter. Instead of tracking a distress

signal transmission for collision avoidance, you track a distress

signal transmission to locate and assist a vessel or person.

Navigating to a Distress Signal Transmission

When you receive a distress signal transmission, a distress

signal alarm appears.

Select Review > Go To to begin navigation to the

transmission.

AIS Distress Signal Device Targeting Symbols

Symbol Description

AIS distress signal device transmission. Select to see more

information about the transmission and begin navigation.

Transmission lost.

Transmission test. Appears when a vessel initiates a test of

their distress signal device, and does not represent a true

emergency.

Transmission test lost.

Enabling AIS Transmission Test Alerts

To avoid a large number of test alerts and symbols in crowded

areas such as marinas, you can select to receive or ignore AIS

test messages. To test an AIS emergency device, you must

enable the chartplotter to receive test alerts.

Select Settings > Alarms > AIS.

Select an option:

• To receive or ignore Emergency Position Indicating Radio

Beacon (EPRIB) test signals, select AIS-EPIRB Test.

• To receive or ignore Man Overboard (MOB) test signals,

select AIS-MOB Test.

• To receive or ignore Search and Rescue Transponder

(SART) test signals, select AIS-SART Test.

Turning Off AIS Reception

AIS signal reception is turned on by default.

Select Settings > Other Vessels > AIS > Off.

All AIS functionality on all charts and 3D chart views is

disabled. This includes AIS vessel targeting and tracking,

collision alarms that result from AIS vessel targeting and

tracking, and the display of information about AIS vessels.

Charts and 3D Chart Views 5

Chart and 3D Chart View Settings

NOTE: Not all settings apply to all charts and 3D chart views.

Some options require premium maps or connected accessories.

These settings apply to the charts and 3D chart views, except

Fish Eye 3D (Fish Eye 3D Settings).

From a chart or a 3D chart view, select MENU.

Waypoints & Tracks: See Waypoints and Tracks Settings on

the Charts and Chart Views.

Other Vessels: See Other Vessels Settings on the Charts and

Chart Views.

Navaids: Shows navigational aids on the Fishing chart.

Chart Setup: See Navigation and Fishing Chart Setup.

Overlay Numbers: See Overlay Numbers Settings. This might

appear in the Chart Setup menu.

Chart Appearance: See Chart Appearance Settings. This might

appear in the Chart Setup menu.

Navigation and Fishing Chart Setup

NOTE: Not all settings apply to all charts and 3D chart views.

Some settings require external accessories or applicable

premium charts.

From the Navigation chart or Fishing chart, select MENU >

Chart Setup.

Satellite Photos: Shows high-resolution satellite images on the

land or on both land and sea portions of the Navigation chart,

when certain premium maps are used (Showing Satellite

Imagery on the Navigation Chart).

Water Overlay: Enables relief shading, which shows the

gradient of the bottom with shading, or sonar imagery, which

helps identify the density of the bottom. This feature is

available only with some premium maps.

Tides & Currents: Shows current station indicators and tide

station indicators on the chart (Showing and Configuring

Tides and Currents) and enables the tides and current slider,

which sets the time for which tides and currents are reported

on the map.

Roses: Shows a compass rose around your boat, indicating

compass direction oriented to the heading of the boat. A true

wind direction or apparent wind direction indicator appears if

the chartplotter is connected to a compatible marine wind

sensor. When in sailing mode, true and apparent wind are

shown on the wind rose.

Lake Level: Sets the present water level of the lake. This

feature is available only with some premium maps.

Overlay Numbers: See Overlay Numbers Settings.

Chart Appearance: See Chart Appearance Settings.

Waypoints and Tracks Settings on the Charts and

Chart Views

From a chart or a 3D chart view, select MENU > Waypoints &

Tracks.

Tracks: Shows tracks on the chart or 3D chart view.

Waypoints: Shows the list of waypoints (Viewing a List of all

Waypoints).

New Waypoint: Creates a new waypoint.

Waypoint Display: Sets how to display waypoints on the chart.

Active Tracks: Shows the active track options menu.

Saved Tracks: Shows the list of saved tracks (Viewing a List of

Saved Tracks).

Tracks Display: Sets which tracks to display on the chart based

on track color.

Overlay Numbers Settings

Edit Layout: Sets the layout of the data overlay, or data fields.

You can select the data to be shown within each data field.

Navigation Inset: Shows the navigation inset when the vessel

is navigating to a destination.

Navigation Inset Setup: Allows you to configure the navigation

inset to show Route Leg Details, and to control when the

inset appears before a turn or destination.

Compass Tape: Shows the compass tape data bar when the

vessel is navigating to a destination.

Editing the Data Fields

You can change the data shown in the overlay numbers

displayed on the charts and other screens.

From a screen that supports overlay numbers, select MENU.

If necessary, select Chart Setup.

Select Overlay Numbers > Edit Layout.

Select a layout.

Select a data field.

Select the type of data shown in the field.

Available data options vary based on the chartplotter.

Showing a Navigation Inset

You can control whether a navigation inset appears on some

chart views. The navigation inset is shown only when the boat is

navigating to a destination.

From a chart or 3D chart view, select MENU.

If necessary, select Chart Setup.

Select Overlay Numbers > Navigation Inset > Auto.

Select Navigation Inset Setup.

Complete an action:

• To show waypoint velocity made good (VMG) when

navigating a route with more than one leg, select Route

Leg Details > On.

• To show next-turn data based on distance, select Next

Turn > Distance.

• To show next-turn data based on time, select Next Turn >

Time.

• To indicate how the destination data appears, select

Destination, and select an option.

Chart Appearance Settings

You can adjust the appearance of the different charts and 3D

chart views. Each setting is specific to the chart or chart view

being used.

NOTE: Not all settings apply to all charts and 3D chart views

and chartplotter models. Some options require premium maps or

connected accessories.

From a chart or 3D chart view, select MENU > Chart Setup >

Chart Appearance.

Orientation: Sets the perspective of the map.

Detail: Adjusts the amount of detail shown on the map, at

different zoom levels.

Heading Line: Shows and adjusts the heading line, which is a

line drawn on the map from the bow of the boat in the

direction of travel, and sets the data source for the heading

line.

World Map: Uses either a basic world map or a shaded relief

map on the chart. These differences are visible only when

zoomed out too far to see the detailed charts.

Spot Depths: Turns on spot soundings and sets a dangerous

depth. Spot depths that are equal to or more shallow than the

dangerous depth are indicated by red text.

Safety Shading: Sets the shades from the shoreline to the

specified depth.

Depth Range Shading: Specifies an upper and lower depth to

shade between.

6 Charts and 3D Chart Views

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

When using my Garmin echo map 73DV what should the icon that illustrates a fish look like the bottom of the lake? Submitted on 26-9-2021 at 15:12
Reply Report abuse
How do I tell what a fish looks like on the bottom of the lake while using mine what should the icon look like? Submitted on 26-9-2021 at 14:59
Reply Report abuse
I have a Garmin Ecomap 73 DV. What setting is best used for fish finding? Submitted on 28-7-2020 at 18:13
Reply Report abuse

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