Fish School Tracking Mode - Furuno FSV-84 Operator's Manual

2.11.2

Fish school tracking mode

The automatic echo target lock function automatically tracks the
operator-selected fish school. When menu option TILT INTERLOCK on the
TARGET LOCK menu (previous page) is set to TILT & RANGE, and the tracked
fish school goes out of the zone in the range direction, the range and tilt are
automatically controlled according to the fish school position.
1. Select FISH at step 7 in the procedure in section 2.11.1.
2. Use the trackball to select the fish school to track on the horizontal display.
3. Press the [TARGET LOCK] key.
The target lock mark appears ( ) on the fish school with a vector extending
from its edge. This vector shows estimated target position after elapsed of
preset vector time. The target lock mark is also inscribed on the vertical
display, however no vector appears.
• If the target is lost, the target lock mark changes to red color and the
tracking mode changes to position mode (see next section) at that
position.
• When the FSV-84 detects and tracks the target again, the mode returns to
the fish school mode.
4. To turn off the target lock, press the [TARGET LOCK] key again.
Bearing mark
follows target
when target
lock is active.
* Turned on or off
from MARK DISPLAY
menu.)
Vector*
Target lock mark and target lock data
2. HORIZONTAL MODE
Target lock mark
Fish school's track*
TARGET LOCK DATA
2975m (Horizontal range)
153m (Depth)
12.3kt (Speed)
S
256° (Course)
C
2-27