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• 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 Satellite Photos 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

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.

Charts and 3D Chart Views

Symbol Description

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

. The photo was

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

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.

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.

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 Proj. 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.