Adding A Label To A Garmin Quickdraw Contours Map; Garmin Quickdraw Contours Settings; Automatic Identification System; Ais Targeting Symbols - Garmin GPSMAP 7600 Series Owner's Manual

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
From the Navigation chart, select a location.
2
Select Add Quickdraw Label.
3
Enter text for the label, and select Done.

Garmin Quickdraw Contours Settings

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

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
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.
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 and MARPA Vessels on a Chart or on a
3D Chart View
Before you can show AIS vessels on a chart, you must have an
external AIS device and active transponder signals from other
vessels. Mini Automatic Radar Plotting Aid (MARPA)
functionality works with radar.
You can configure how other vessels appear on a chart or on a
3D chart view. The display range and MARPA settings
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.
1 From a chart or a 3D chart view, select Menu > Other
Vessels > Display Setup.
2 Select an option:
• To indicate the distance from your location in which AIS
vessels appear, select Display Range, and select a
distance.
• To show MARPA-tagged vessels, select MARPA > Show.
• To show details about AIS-activated and MARPA-tagged
vessels, select Details > Show.
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