Furuno 1932 MARK-2 Displaying Target Data, Terminating Tracking of Targets, Individual targets

Follow the steps shown below to activate the auto acquisition area.

1.Open the “ARP-10 MENU.”

2.Select “8. Auto ACQ.”

3.Select “On.”

4.Press the [ACQ/ENTER] key.

5.Press the [MENU] key to close the menu.

Terminating Tracking of Targets

When the Auto Plotter has acquired 10 tar- gets, no more acquisition occurs unless tar- gets are lost. Should this happen, cancel tracking of individual targets 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 operat- ing the omnipad and press and hold down the [SELECT/CANCEL] key.

All targets

All targets can be canceled from "ARP-10 MENU" at a time.

1.Open the “ARP-10 MENU.”

2.Select “2. All Cancel.”

3.Press the [ACQ/ENTER] key.

6.4 Displaying Target Data

The Auto Plotter calculates motion trends (range, bearing, course, speed, CP A and TCPA) of all targets under tracking at theARP Data area.

To turn ARP data on;

1.Press the [MENU] key.

2.Select “DISP DATA.”

3.Press the [ACQ/ENTER] key to select the message for “ARP” or “NAV” or “ARP.”

4.Press the [ACQ/ENTER] key.

5.Press the [MENU] key to close the menu.

CAUTION

At the speed under 5 kts the target data is displayed with a delay because of filtration.

Place the cursor on a wanted target and press the [SELECT/CANCEL] key. Data on the se- lected target is displayed at the bottom of the screen. The symbol of the selected target gets twice as large as the normal circle.The data includes the following:

RNG/BRG (Range/Bearing): Range and bearing from own ship to the last-plotted or selected target position with suffix “T” (True) or “M” (Magnetic). For true bearings suffix “T” is used in case of gyrocompass input and suf- fix “M” is used in case of magnetic compass input.

COURSE/SPEED (Course/Speed): Course and speed are displayed for the last-plotted or selected target with suffix “T” (True) or “M” (Magnetic). For true bearings suffix “T” is used in case of gyrocompass input and suffix “M” is used in case of magnetic compass input.

CPA (Closest Point of Approach): is the closest range a target will approach to own ship. Do not mix it with the operator preset CPA alarm limit.

TCPA: The time to CP A measured with present speeds of own ship and the targets. Both CPA and TCPA are automatically cal- culated. When a target ship has passed clear of own ship, the CP A is displayed and the TCPA appears as “**.*”. TCPA is counted up to 99.9 min. and beyond this it is indicated as TCPA>99.9 min.

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