Section 2 Basic Operations and Mode Screen 2-4
2.2.3 Ship information
Do not use the offset function while the ship is underway.
If the equipment is used with an offset value input in the ship position (state of being
shifted from the actual position), an accident may be caused.
The ship information is displayed.
Memo
• When the 1-axis log is used, the velocity component in the forward direction can be detected
but the velocity component in the lateral direction cannot be detected. Therefore, the leeway
effect (off-course movement due to wind) cannot be detected.
• When the 2-axis ground log is used, the accuracy may degrade in a shoal. The velocity may not
be detected in the abyssal zone.
• When the GPS is used, the COG precision will be less than ±3° at velocities of 1 to 17 kn. The
precision will be less than ±1° at velocities of more than 17 kn.
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