Furuno FAR-21 7-BB Series, Operator'S Manual

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3. ARP OPERATION
3-5
[ARP TARGET MENU]
1 ARP SELECT
MANUAL100/
AUTO
25/
AUTO 50/
AUTO 75/
AUTO 100
2 ALL CANCEL
3 REF TARGET VECTOR
OFF/ON
3.5 Automatic Acquisition
The FAR-2xx7 radars can acquire a maximum of 100 targets, the number of
automatically and manually acquired targets determined by the ARP TGT menu
setting.
ARP TGT menu setting and target acquisition condition
Menu Setting Acquisition condition
MANUAL100 100 targets manually
AUTO25 25 targets automatically, 75 targets manually
AUTO50 50 targets automatically, 50 targets manually
AUTO75 75 targets automatically, 25 targets manually
AUTO100 100 targets automatically
A target just acquired automatically is marked with a broken square and a vector
appears within 20 scans (3 s for HSC) of the antenna to indicate the target's
motion trend. Within 60 scans (20 scans for HSC), the initial tracking stage is
finished and the target becomes ready for stable tracking. At this point, the
broken square mark changes to a solid circle. (Targets automatically acquired
are distinguished from those acquired manually. The targets which are acquired
manually are displayed by bold symbol.)
3.5.1 Enabling auto acquisition
1. Roll the trackball to place the arrow in the ARP ACQ MODE box at the right
side of the screen and then push the right button to show the ARP TARGET
menu.
ARP TARGET menu
2. Roll the wheel to choose 1 ARP SELECT and then push the wheel or the left
button.
3. Roll the wheel to choose automatic acquisition condition desired, referring to
the table above for details, and then push the wheel or the left button.
4. Push the right button to close the menu.
Note 1:
The ARP ACQ MODE box shows AUTO or when the automatic
acquisition condition is selected.
Note 2:
When the menu-set number of automatically acquired targets is
reached, the message “TARGET-FULL (AUTO)” is displayed at the
right-hand side of screen.