Showing Tides And Current Indicators; Showing Satellite Imagery On The Navigation Chart; Viewing Aerial Photos Of Landmarks; Garmin Quickdraw Contours Mapping - Garmin GPSMAP 8400 series Owner's Manual

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 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.
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:
• Select Land Only to show standard chart information on
the water, with photos overlaying the land.
• Select Photo Map 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.
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
direction of the cone.
2 Select Aerial Photo.
6
Garmin Quickdraw
The Garmin Quickdraw Contours mapping feature allows you to
instantly create maps with contours and depth labels for any
body of water.
When Garmin Quickdraw Contours records data, a colored
circle surrounds the vessel icon. This circle represents the
approximate area of the map that is scanned by each pass. A
green circle indicates good depth and a good GPS position. A
red circle indicates that the depth or GPS position data is
unavailable.
You can view Garmin Quickdraw Contours in a combination
screen or as a single view on the map.
The amount of saved data depends on the size of your memory
card, your sonar source, and the speed of your boat as you
record data. You can record longer when you use a single-beam
sonar. It is estimated that you might be able to record about
1,500 hours of data onto a 2 GB memory card.
When you record data on a memory card in your chartplotter,
the new data is added to your existing Garmin Quickdraw
Contours map, and is saved on the memory card. When you
insert a new memory card, the existing data does not transfer
onto the new card.
Mapping a Body of Water Using the Garmin
Quickdraw Contours Feature
Before you can use the Garmin Quickdraw Contours feature,
you must have a supported chartplotter with upgraded software,
sonar depth, your GPS position, and a memory card with free
space.
NOTE: This feature is not available on all models.
1
2
3

Adding a Label to a Garmin Quickdraw Contours Map

You can add labels to a Garmin Quickdraw Contours map to
mark hazards or points of interest.
1
2
3

Garmin Quickdraw Contours Settings

From the chart, select Menu > Quickdraw Contours >
Settings.
Recording Offset: Sets the distance between the sonar depth
Display Offset: Sets differences in contour depths and depth
Survey Coloring: Sets the color of the Garmin Quickdraw
Depth Shading: Specifies an upper and lower depth and a color

Automatic Identification System

.
The Automatic Identification System (AIS) enables you to
. The photo was
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
™
From a chart view, select Menu > Quickdraw Contours >
Start Recording.
When recording is complete, select Stop Recording.
Select Manage > Name, and enter a name for the map.
From the Navigation chart, select a location.
Select Add Quickdraw Label.
Enter text for the label, and select Done.
and the contour recording depth. For example, a sonar depth
of 3.6 m (12 ft.) with a recording offset of -0.5 m (-1.5 ft.)
creates contours at a depth of 3.1 m (10.5 ft.).
labels on a Garmin Quickdraw Contours map to compensate
for changes in the water level of a body of water, or for depth
errors in recorded maps.
Contours display. When the setting is turned on, successfully
recorded areas appear green, and unsuccessfully recorded
areas appear red. When the setting is turned off, the contour
areas use standard map colors.
for that depth.
Contours Mapping
Charts and 3D Chart Views