User Manual Part 2

3. ARPA OPERATION

3-6

3.7 History Display (target past position)

This radar can display time-spaced dots (maximum ten dots) that mark the past posi-

tions of any tracked ARPA target. You can evaluate actions of a target by the spacing

between dots. Below are examples of dot spacing and target movement.

Target movement and history display

You can select the number of history dots to display and the time interval to display

the history dots.

1. Press the MENU key to open the menu.

2. Use the Cursorpad (S or T) to select [Target] and press the ENTER key.

3. Use the Cursorpad (S or T) to select [History Dots] and press the ENTER key.

History Dots options

4. Use the Cursorpad (S or T) to select number of history dots to display (5 or 10)

or select [Off] to turn off the history display.

5. Press the ENTER key.

Vector of

your ship

Data box

Cursor

(a) Ship turning

(b) Ship running

straight

speed

(d) Ship increased

speed