History Display (Target Past Position) - Furuno 1835 Operator's Manual

4.11

History Display (target past position)

This radar can display time-spaced dots (maximum ten dots) that marks the past po-
sitions of any tracked AIS target. You can evaluate actions of a target by the spacing
between dots. Below are examples of dot spacing and target movement.
(a) Ship turning
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 (
3. Use the Cursorpad (
4. Use the Cursorpad (
or select [Off] to turn off the history display.
5. Press the ENTER key.
6. Use the Cursorpad (
7. Use the Cursorpad (
8. Press the MENU key to close the menu.
(b) Ship running
straight
Target movement and history display
or ) to select [Target] and press the ENTER key.
or ) to select [History Dots] and press the ENTER key.
History Dots options
or ) to select number of history dots to display (5 or 10)
or ) to select [History Interval] and press the ENTER key.
History Interval options
or ) to select time interval and press the ENTER key.
(d) Ship increased
(c) Ship reduced
speed
4. AIS OPERATION
speed
4-7