9-1 Chapter 9 Specification
9
Chapter 9 Specification
9.1 General Specification
Ground measuring system Satellite system
Bow starboard/port speed measurement scale -99.99 to +99.99kn
Ahead/astern speed measurement scale -99.99 to +99.99kn
Stern starboard/port speed measurement scale -99.99 to +99.99kn
No. of digits displayed Fixed 4 digits
Minimum digital display unit 0.01kn
Minimum analog display unit Scale: 0.5kn units
Value: 5.0kn units
Sailing display range 0-999999.99 NM
Ship speed accuracy 1% of the speed of the ship, or 0.1kn whichever is
greater
0.2% of the speed of the ship, or 0.02kn whichever is
greater (only for positioning by 5 or more satellites)
Sailing accuracy Greater value between 1% per hour or 0.1NM
Power consumption 53W 60VA (for 100VAC)
58W 110VA (for 230VAC)
Power consumption of resource alert circuit 0.25W (normal condition)
0.5W (when power fail alert happening)
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