Furuno FR-2125V Operator's Manual page 89

5.5.1 Enabling and disabling auto acquisition
1. Press [RADAR MENU], [8] twice, [ENTER] and [RADAR MENU] if the ARPA is not yet
activated. Note that the label ARPA appears at the screen center.
2. Press the [PLOT MENU] key to show the ARPA 1 menu.
3. Press the [2] key to select AUTO ACQ.
4. Further press the [2] key to select (or highlight) ON (enable auto acquisition) or OFF
(disable auto acquisition) as appropriate.
5. Press the [ENTER] key to conclude your selection followed by the [PLOT MENU] key
to close the ARPA 1 menu. Note that the label AUTO+MAN is displayed at the screen
center when auto acquisition is enabled; MAN when auto acquisition is disabled.
Note: When the ARPA has acquired 20 targets automatically, the message AUTO TAR-
GET FULL is displayed at the screen bottom.
5.5.2 Auto acquisition areas
Automatic acquisition is performed within 1 or 2 zones. Outside these zones are the auto
acquisition suppressed zones. The zones can be set at 3.0-4.0 nm and/or 5.0-6.0 nm, or
anywhere within 0.2 - 32 nm.
Predefined auto acquisition areas (Menu item: 3, 6NM)
1. Press the [PLOT MENU] key to show the ARPA 1 menu.
2. Press the [3] key to select AUTO ACQ AREA.
3. Further press the [3] key to select (or highlight) menu option "3, 6NM."
4. Press the [ENTER] key to confirm your selection followed the [PLOT MENU] key to
close the ARPA 1 menu.
Figure 5-5 on the next page shows how the auto acquisition areas are displayed on the
screen. Up to 20* targets within the auto acquisition areas are acquired automatically.
There is no priority in acquisition. It is recommended to use two zones on high speed craft.
* If 30 targets have already been acquired manually in the MAN ACQ mode (AUTO ACQ
OFF on ARPA 1 menu), no more targets can be acquired.
[ARPA (1)]
1 VECTOR TIME
2 AUTO ACQ
3 AUTO ACQ AREA
4 GUARD ZONE
5 [GUARD ZONE SET]
6 TARGET BASED SPEED
7 REFERENCE TARGET VECT
8 COLLISION ALARM
9 [TRIAL MANEUVER]
0 [ARPA (2)]
Figure 5-4 ARPA 1 menu
30SEC/1/2/3/6/12/15/30MIN
OFF/ON
3, 6NM/[SET]
OFF/ON
OFF/ON
CPA 0.0KT
TCPA 00.0MIN
5-7