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Filtering the targets
All targets are by default shown on the display if an AIS device is
connected to the NSO-II system.
You can select not to show any targets, or to filter the icons based
on security settings, distance and vessel speed.
Vessel's extension lines
The length of the extension lines for your vessel and for other
vessels can be set by the user.
The length of the extension lines is either set as a fixed
distance, or to indicate the distance the vessel will move in
the selected time period.
For own vessel heading information is read from active
heading sensor, and COG information is as received from the
active GPS.
For other vessels COG data is included in the message received from the AIS system.
Defining dangerous vessels
You can define an invisible guard zone around
your vessel. When a target comes within this
distance from your vessel, the symbol will change
to the "dangerous" target symbol. An alarm will be
triggered if activated in the Alarm settings panel.
Speed and course indication
The extension line can be used to indicate speed and course for targets; either as absolute
(true) motion in the chart or relative to your vessel.
Different line style is used on the extension lines to indicate motion as shown below.
Absolute motion
AIS icon orientation
Sets the orientation of the AIS icon; either based on heading or COG information.
AIS SART
When an AIS SART (Search And Rescue beacon) is activated, it starts transmitting its
position and identification data. This data is received by your AIS device.
If your AIS receiver is not compliant with AIS SART, it interprets the received AIS SART data
as a signal from a standard AIS transmitter. An icon is positioned on the chart, but this icon
is an AIS vessel icon. Refer icon description in the NSO-II Operator manual.
If your AIS receiver is compliant with AIS SART, the following take place when AIS SART
data is received:
•
An AIS SART icon is located on the chart in the position received from the AIS SART
• An alarm message is displayed
AIS - Automatic Identification System |
Relative motion
NSO-II Operator Manual
COG
Heading
| 73
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