Furuno 1932, 1942, 1832 manual One minute after acquisition Vector still un- reliable

Deactivating the Auto Plotter

To deactivate the Auto Plotter,

1.Open the "ARP-10 MENU".

2.Operate the omnipad to select the "1. Dis- play".

5.Operate the omnipad to select "Off".

6.Press the [ACQ/ENTER] key.

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

Acquiring targets

Manual Acquisition

Follow the steps below to manually acquire a target. Up to 10 targets can be manually ac- quired.

1.Place the cursor (+) on a target of interest by operating the omnipad.

2.Press the [ACQ/ENTER] key.

The plot symbol changes its shape according to the status as below. A vector appears in about one minute after acquisition indicating the target's motion trend. If the target is con- sistently detected for three minutes, the plot symbol changes to a solid mark. If acquisi- tion fails, the target symbol blinks and disap- pears shortly.

SQUARE (dotted)

Immediately after acquisition - Plot symbol shown in broken lines.

SQUARE (dotted with a vector)

One minute after acquisition - Vector still un- reliable.

CIRCLE (Solid with a vector)

3 minutes after acquisition - Plot symbol changes to a solid circle indicating the stable tracking condition.

LARGE CIRCLE

The plot symbol of a target under tracking becomes twice as large as the normal symbol when the target is selected for data reading.

Note 1:The target to be acquired should be within 0.2 to 16 nm from own ship and not obscured by sea or rain clutter for successful acquisition.

Note 2:When you want to acquire 11th target, cancel tracking one of less important targets.

Note 3:When auto acquisition mode (Auto ACQ) is on, up to 5 targets can be acquired. For detail, see next section titled Automatic Acquisition.

WARNING

When a tracked target nears another tracked target, the targets may be "swapped." When two targets come close to each other, one of the two can become a "lost target." Should this happen, reacquisition of the "lost target" is required after the two targets have separated.

Automatic Acquisition

The Auto plotter ARP-10 can acquire up to 5 targets automatically by setting the Auto Ac- quisition area predefined in the system. If Auto ACQ is selected after more than 5 targets have been manually acquired, only the remaining capacity of targets can be automatically ac- quired. Example; when 7 targets acquired manually, then the Auto ACQ is switched on only 3 targets can be acquire automatically. When five targets have been automatically acquired, "AUTO TARGET FULL" message appears at top left corner on the display.

Setting Auto Acquisition Area

Auto acquisition area is predefined between

2.0and 2.5 nm in range and 45º on either side of the heading line in bearing. If a target come into this area, it is acquired automatically.

AP-5