Viewing Tide Station Information; Showing Satellite Imagery On The Navigation Chart; Viewing Aerial Photos Of Landmarks; Automatic Identification System - Garmin GPSMAP 800 series Owner's Manual

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.
1
From the Navigation chart or Fishing chart, select a tide
station.
Tide direction and tide level information appear near
2
Select an option to view additional station information:
• Select the station name.
• If more than one item is in the vicinity, select Review, and
select the station name.
Animated Tide and Current Indicators
NOTE: This feature is available with premium charts, in some
areas.
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
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.
1
From the Navigation or Fishing chart, select MENU > Chart
Setup > Tides & Currents.
2
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.
1
From the Navigation chart, select MENU > Chart Setup >
Satellite Photos.
2
Select an option:
4
• 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.
1
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
(Showing and
direction of the cone.
2
Select Review > 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.

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.
.
. The photo was
Charts and 3D Chart Views