Garmin GPSMAP 7215 User Manual
Page 21
GPSMAP
®
6000/7000 Series Owner’s Manual
15
Charts and 3D Chart Views
AIS Targeting on the Navigation Chart
Lost
AIS target
Lost
dangerous
AIS target
Tracking
AIS target
AIS target
Closest point and
time of approach to
dangerous target
Dangerous
AIS target
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 has been selected�
Target has been 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 has been lost� A green
X indicates that the AIS transmission from the vessel has
been 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
)� If the AIS transmission from the vessel is lost, a message banner
appears�
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�
Dangerous target has been lost� A red
X indicates that the AIS transmission from the vessel
has been 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�
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 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.