Bedienungsanleitung Garmin GPSMAP 820xs (Seite 11 von 46) (Englisch)

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Color Current Speed Range

Yellow 0 to 1 knot

Orange 1 to 2 knots

Red 2 or more knots

Showing Tides and Current Indicators

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

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 . 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

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.

Charts and 3D Chart Views 5

Garmin GPSMAP 820xs Seite 11

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