Onwa Marine Electronics KR-12X8 - Manual (Page 74)

Terminating Tracking of Targets
When the Auto Plotter has acquired 20 targets, no more acquisition occurs unless
targets are lost. Should this happen, cancel tracking of individual target or all
targets by the procedure described below.
Individual Targets
Place the cursor (+) on a target which you do not want to be tracked any longer
by operating the omnipad and press andgold down the [SELECT/CANCEL] key.
All Targets
All targets can be canceled from "ARPA MENU" at a time.
1. Open the "ARP MENU".
2. Select "All Cancel".
3. Press the [ACQ/ENTER] key.
Displaying Target Data
The Auto Plotter calculates motion trends (range, bearing, course, speed, CPA and
TCPA) of all targets under tracking at the ARP Data area.
CAUTION
At the speed under 5 kts the target data is
displayed with a delay because of the filtration
Place the cursor on a wanted target and press the [SELECT/CANCEL] key. Data
on the selected target is displayed at the bottom of the screen. The symbol of the
selected target gets
. The data includes the
follows;
Surrounded by a broken square frame
RNG/RBG (Range/Bearing): Range and bearing from own ship to the last-plotted
or selected target position with suffix "T"(Ture) or "M"(Magnetic). For ture
bearings suffix "T" is used in case of gyrocompass input and suffix M" is
used in case of magnetic compass input.
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