Furuno NAVNET 1724C - Manual (Page 47)

2. RADAR OPERATION
2-16
AUTO SHIP SPEED
15
Setting automatic shift maximum speed
1. If not displayed, press the HIDE/SHOW key to show the radar soft keys.
2. Press the RADAR DISPLY soft key.
3. Press the SHIFT soft key to show the shift soft keys.
4. Press the AUTO S.SPD soft key to display the auto ship
speed setting window.
5. Adjust the Cursor pad or ENTER knob to set the
maximum speed of your vessel, and then push the
ENTER knob or the ENTER soft key to set. The setting
range is 1-99 kt and the default setting is 15 kt.
Automatic shift
Press the AUTO soft key. To cancel, press the RADAR DISPLY, SHIFT and OFF soft keys.
2.17 Using the Offset EBL
The offset EBL can be used to predict a potential collision course. It can also be used to
measure the range and bearing between two targets.
2.17.1 Predicting collision course
The procedure below may be used to check if a radar target is on a potential collision
course with your vessel.
1. Press the EBL/VRM key to show the EBL/VRM soft keys.
2. Press the EBL1 ON soft key to turn on the EBL1.
3. Press the OFFSET soft key. The origin of EBL1 moves to the cursor position, which is
marked with an “X.”
4. Use the Cursor pad to place the cursor on the radar target which looks like it might be
on a collision course with own ship.
5. Push the ENTER knob to fix the origin position.
6. After waiting for a few minutes (at least three minutes), rotate the ENTER knob so the
EBL bisects the target at the new position. If the target tracks along the EBL towards the
center of the display (your ship’s position), the target may be on a collision course with
your vessel.
To cancel the offset EBL, press the OFFSET soft key.