Furuno GD-280, Руководство оператора

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11-14
11.6.2 Assessing risk of collision
1. Display the No.1 EBL.
2. Push the [EBL OFFSET] control.
3. Use the trackball to place the +cursor on a target appearing as threatening.
4. Push the [EBL OFFSET] control, and the origin of the active EBL shifts to the +cursor
position.
5. After waiting for a few minutes (at least 3 minutes), operate the EBL control until the EBL
bisects the target at the new position.
If the EBL passes through the screen center, the target may be on a collision course. Take
evasive action as necessary.
To return the EBL origin to the own ship's position, push the [EBL OFFSET] control again.
No.1 EBL
(Initial position
of target)
Current position
of target
Own Ship
Position
Several minutes