Track Function; Past Position (Past Posn) - JRC JMA-932B-SA User Manual

5.6

TRACK FUNCTION

5.6.1 Past Position (Past POSN)

Procedures 1
The past position function can display up to ten past positions of a target under tracking. The past position
display interval can be set to specified time intervals of 0.5, 1, 2, or 4 minutes, or specified range intervals of
0.1, 0.2, 0.5, or 1 nm.
The specified interval is displayed in the past position display interval switching in Target Information located
at the upper right of the display. When Off
The track mode operates in conjunction with the vector mode, and a true or relative track is displayed.
In relative vector mode, the relative tracks of the target are displayed.
In true vector mode, true tracks that are calculated from the relative bearing, range, own ship's course, and
speed are displayed.
When the target is acquisition, past position of traced target is start plot.
When the AIS target is displayed, past position of AIS target is start plot.
If the past position plotted time or range is short, the indicated past position duration may not have achieved the
specified time or range.
Left-click the past position display interval switching button in the
Target Information located at the upper right of the display, and set a
desired track display interval.
The past position will be set.
Off : Tracks are not displayed.
Numeric : Tracks are displayed at intervals of a specified value.
is displayed, the track display function is turned off.
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