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20. Alerts
20-2
20.3 Alerts Generated by Navigation Calculation
Navigation calculation generates the following alerts
• Error detected in any sensor
• Radar communication error
• Software alerts, etc.
20.4 Alerts Generated by Chart Calculation
Chart calculation generates the following alerts
• New Notes page available.
• Chart alerts based on S57 charts.
• Chart alerts based on user chart’s dangerous symbols, lines and areas
20.5 Alerts Generated by Radar
Alerts generated by Navigation Calculation and Chart Calculation are common for each workstation (i.e. they can be
seen on each workstation’s alert queue with same alert number). Alerts generated by Radar overlay are generated
locally on workstation where failure happens (i.e. they can only be seen on workstation where it happens). Each
workstation has own alert numbers for alerts generated by radar overlay.
• Alert range is: Alert 100 - Alert 109, for Chart radar number 1.
• Alert range is: Alert 200 - Alert 209, for Chart radar number 2.
• Alert range is: Alert 150 - Alert 159, for Chart radar number 3
• Alert range is: Alert 250 - Alert 259, for Chart radar number 4
• For example: "100 RadOv No Headline" for Chart radar 1 "200 RadOv No Headline" for Chart radar 2
• Alerts that are generated by radar being source of Radar overlay and/or TTs are as follows:
• Alert range is: Alert 110- alert 120, for radar antenna 1
• Alert range is: Alert 210- alert 220, for radar antenna 2
• Alert range is: Alert 160- alert 170, for radar antenna 3
• Alert range is: Alert 260- alert 270, for radar antenna 4
For example: "110: TT dangerous target" for radar antenna 1 "210: TT dangerous target" for radar antenna 2