How To Display Ais Target Past Positions - Furuno FEA-2807 Operator's Manual

Electronic chart display and information system (ecdis)

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Table of Contents

21. AIS Target Functions

21.12 How to Display AIS Target Past Positions

The past position display shows equally time-spaced dots marking past positions of activated AIS targets. A new dot

is added at preset time intervals until the preset number is reached. If a target changes its speed, the spacing will be

uneven. If it changes course, its plotted course will not be a straight line.

Past Positions (or the length of trace) and presentation mode can be set on the information area, at the locations

circled in the illustration below.

1. Put the cursor on the text "PASTPOSN OFF" then left-click to get the time field.

2. Put the cursor on the time value and the scrollwheel to set value.

3. Spin the scrollwheel to display Symbol Display/Info/Standard Display in the mouse functions area then push

the left mouse button. Set the length of track (in minutes).

4. To modify the style of target past positions, put the cursor over the time indication and right-click to open the

Display Settings dialog box. Click an arrow tab in the dialog box to show the Tracking page. Select Density

(Sparse, Medium, Dense) to define density of points and Style (Points, Points and dots) to set point

configuration.

Symbol Display

Sample past position displays

Fea-2107-bb Fea-2107