Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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Targets ECDIS User Guide
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The option will be greyed out if the ‘Show AIS and Tracked target
CPA/TCPA’ option on the Limits and Settings menu is unchecked.
If the operator attempts to disable this option while the Class A or Class B
Active option is enabled then a warning is displayed that filtering will be
removed i.e. “All” will be selected for both Class A & Class B targets.
Filter Settings
Filter Settings enables different types of AIS targets and AIS NAV Symbols
to be displayed (ticked) or not displayed (unticked).
The system prioritises AIS targets into class A and class B vessels. The
distinction is made based on the type of message received via the AIS
transponder
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installed on the originating vessel. For a description of Class
A and Class B targets see ` Classes and Types of AIS ’.
Class A – Filter settings are available to display
•
All targets
•
Active targets only (ie not sleeping)
•
No targets (None). This option will be greyed out and not
selectable if the Activate on CPA/TCPA/BCR box is checked
Class B - Filter settings are available to display
•
All targets
•
Active targets only (ie not sleeping)
•
No targets (None). This option will be greyed out and not
selectable if the Activate on CPA/TCPA/BCR box is checked
The “None” option is only available when Raise Alerts is deactivated
from the Collision Avoidance section of the Limits and Settings menu.
If the operator attempts to enable the Active option
for Class A or Class B when the Activate on
CPA/TCPA/BCR setting is disabled, an `Action
Required’ prompt appears to inform that filtering
out the deselected class will automatically enable
Auto-Activation.
To proceed with target filtering click the Yes button.
Sleeping targets for the selected filter class are
removed from the screen and Activate on CPA/TCPA/BCR
is enabled.
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An AIS transponder is a short range data radio unit which automatically transmits and
receives vessel information.