Garmin GPSMAP 527 Owner's Manual - Page 49

Heading and Projected Course of Activated AIS Targets, not appear on a 3D chart view. - test

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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 is set to Show (page 45). 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 is 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 is set to Off, the target flashes, but the audible alarm does not sound and the alarm banner does not appear (page 46). 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 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. GPSMAP 400/500 Series Owner's Manual Viewing Information AIS-SART transmission. You can select this symbol to see more information about the SART transmission and begin navigation. AIS-SART transmission lost. AIS-SART transmission test. This symbol appears when a vessel initiates a test of their SART device, and does not represent a true emergency. You can disable these test symbols and alerts (page 44) AIS-SART transmission test lost. Heading and Projected Course of Activated AIS Targets When course over ground and heading 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 (page 45). 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, the course over ground, or the rate-of-turn information transmitted by the vessel can impact the calculation of 43

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GPSMAP 400/500 Series Owner’s Manual
43
Viewing Information
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 is set to
Show
(
page 45
)� 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 is 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 is set to
Off
, the
target flashes, but the audible alarm does not sound and
the alarm banner does not appear (
page 46
)� 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 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�
AIS-SART transmission� You can select this symbol to see
more information about the SART transmission and begin
navigation�
AIS-SART transmission lost�
AIS-SART transmission test� This symbol appears when a
vessel initiates a test of their SART device, and does not
represent a true emergency� You can disable these test
symbols and alerts (
page 44
)
AIS-SART transmission test lost�
Heading and Projected Course of Activated AIS Targets
When course over ground and heading 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 (
page 45
).
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, the course over ground, or the rate-of-turn
information transmitted by the vessel can impact the calculation of