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2.6 Manual Acquisition
In auto acquisition mode (AUTO ACQ ON), up to 20 targets can be manually acquired in
addition to 20 auto acquired targets. When auto acquisition is disabled (AUTO ACQ OFF), up
to 40 targets can be manually acquired and automatically tracked.
To manually acquire a target:
1. Place the cursor (+) on a target of interest by operating the trackball.
2. Press the ACQ key on the control head. The selected plot symbol is marked at the cursor
position.
Note that the plot symbol is drawn by broken lines during the initial tracking stage. A vector
appears in about one minute after acquisition indicating the target's motion trend. If the target
is consistently detected for three minutes, the plot symbol changes to a solid mark. If
acquisition fails, the target plot symbol blinks and disappears shortly.
(a) Immediately after acquisition, this plot
symbol is shown in broken lines.
(b) Within 20 scans of antenna after
acquisition, a vector appears to show a
trend of movement.
(c) Within 60 scans of antenna after
acquisition, the plot symbol changes to a
small circle indicating steady-state
tracking condition.
Notes:
1) For successful acquisition, the target to be acquired should be within 0.2 to 32 nm from
own ship and not obscured by sea or rain clutter.
2) When you have acquired 40 targets manually, the message MAN TARGET FULL is
displayed at the screen bottom. Cancel tracking of non-threatening targets if you wish to
acquire additional targets manually. (See "Terminating tracking of acquired targets" on
page 2-9.)