3. ARP OPERATION

3.7History Display (target past position)

This radar can display time-spaced dots (maximum ten dots) marking the past positions of any ARP or AIS target being tracked. You can evaluate a target's actions by the spacing between dots. Below are examples of dot spacing and target movement.

(a) Ship turning

(b) Ship running

(c) Ship reduced

(d) Ship increased

 

straight

speed

speed

Target movement and history display

You may choose the number of history dots to display and the time interval to display them.

1.Press the MENU key to open the menu.

2.Choose Target and press the ENTER key.

3.Choose History Dots and press the ENTER key.

Off 5 10

4.Choose number of history dots to display (5 or 10) or choose Off to turn off the history display.

5.Press the ENTER key.

6.Choose History Intervals and press the ENTER key.

15sec

30sec

1min

2min

3min

6min

12min

7.Choose appropriate time interval and press the ENTER key.

8.Press the MENU key to close the menu.

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Furuno FR-8062, FR-8252, FR-8122 manual History Display target past position, Target movement and history display