11 – 12
11
11.11 DISPLAY UNIT (NCD-4111)
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w Priority
(1) Latitude/Longitude: GGA>RMC>RMA>GNS>GLL
(2) Waypoint: RMB>BWC (BWR)
Note: The speed measuring accuracy of the speed sensor shall conform to IMO
Resolution A.824 (19).
……11.12 ARPA ……………………………………………………………
(1) Acquisition
• Acquisition Mode: Auto/Manual Acquisition (Targets are acquired within guard
zone in the automatic acquisition mode)
• Manual Cancellation of
Unwanted Target: Each One Target or All Target at once
(2) Tracking
• Number of Targets: 50 Targets (Auto Tracking)
• Acquisition and Tracking Range: 32 NM
(3) Presentation
• Display Modes: TM (True Motion)/RM (Relative Motion)
• Bearing Modes: North-up/Head-up/Course-up
• Vector Modes: True/Relative Vector Display
Vector Length: Adjustable from 1 to 60 min
• Past Position Display: True/Relative Display
Number of Dots: 6 points
Display Time: 30 sec, 1 min, 2 min, 4 min
• Time to Display Vector: Within 1 min
• Time to Stabilize Vector: Within 3 min
(4) Alarm
• Guard Zone: 2
• Setting Ranges: Guard Zone 1 (0.5 - 32 NM), Guard Zone 2 (0.5 - 32 NM)
• Alarm Indication: mark on CRT with Visible/Audible alarm
(5) Safe Limits (CPA/TCPA)
• Setting Condition: CPA LIMIT (0.1 - 9.9 NM)
TCPA LIMIT (1 - 99 min)
• Alarm Condition:
• Alarm Display:
• Lost Target: mark on CRT
Visible/Audible Alarms
Safe target: • CPA>CPA LIMIT
• 0>TCPA
• TCPA>TCPA LIMIT
Danger • CPA≤CPA LIMIT,
Target: 0≤TCPA≤TCPA LIMIT
Status CRT Symbol Alarm Buzzer
Safe Ship OFF OFF
Danger Ship CPA/TCPA ON
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