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z The reference target function is to be used if the own ship's
speed cannot be displayed normally due to trouble such as a
speed sensor malfunction. Do not use the reference target
function except in emergencies.
z If the speed or course of the own ship is changed or a new
reference target is set, the displayed speed may take 3
minutes or more to reach the specified speed after the speed
/ course change or the setting.
Even after 3 minutes or more has passed, the speed may
differ from the specified speed depending on the tracking
condition.
z If a large radar echo such as a land target is set as a
reference target, the vectors of the speed and other tracking
targets will not be displayed correctly and may cause an
accident.
z If a sailing ship is set as a reference target, the vectors of the
speed and other tracking targets will not be displayed
correctly and may cause an accident.
z If the reference target is lost or the target tracking function is
stopped, the speed sensor is placed in manual mode MAN .
z The loss of a reference target may have a major impact on
the accuracy of the results for true speed and true course of
the target and that own speed.
z The reference targets are only used for the calculation of true
speed.
5.2.6 Reference Target (Reference)
The system can display the own ship's speed. To do so, it sets a reference target by tracking a target for which
ground fixed.
Attention
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