
RA83/84/85/93/94/95 Series
Chapter 6
Using The Menu
Operation Manual
6.6.5 Explanation of the EPA terms
TARGET ID:
The target ID number can be tagged on each displayed target from 1 to 10.
AGE:
The time elapsed from when a target is plotted. The unit is in minute(s).
CPA (Closest Point of Approach):
The closest distance of a plotted target to own ship. The unit is in nautical mile(s).
TCPA (Time to CPA):
The time required for a target reaching CPA.
CRS/COG (Course/Course Over Ground):
The course of a target plotted is shown. The course can be switched to true or relative
by pressing the TRUE/REL key.
STW/SOG (Speed):
The true speed of a plotted target, can be switched to true or relative by pressing the
TRUE/REL key.
VECT (Vector):
The vector time of a plotted target.
BRG (Bearing):
The bearing of a target, plotted in true or relative mode. The bearing display is
referenced to own ship.
DIST (Distance):
The distance of a target plotted from own ship.
UNRELIABLE PLOT DATA:
A warning that means the assigned target plot is old and not reliable, suggesting you
to update the plotting. When this display is shown, an audio alarm is activated. If you
leave the plot not updated for 15 minutes after the last update, all symbols and data
currently plotted will be deleted.
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