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2. HORIZONTAL MODE
2.11.2
Fish mode
The automatic echo target lock function automatically tracks the operator-selected
school of fish. When [TILT INTERLOCK] on the [TARGET LOCK] menu (previous
page) is set to [TILT & RANGE], and the tracked school of fish goes out of the zone in
the range direction, the range and tilt are automatically changed according to the po-
sition of the school of fish.
1. Select [Fish] in the procedure in subsection 2.11.1.
2. On the horizontal display, use the trackball to select the school of fish to track.
3. Press the TARGET LOCK key.
The target lock mark (red) is put on the fish school echo. The target lock mark
changes to white, with vector, when the school of fish is locked. The vector shows
the speed and direction of movement of the school of fish. The tip of the vector is
the estimated position of the school of fish when the vector time elapses. The tar-
get lock mark also appears on the vertical display, however the vector is not
shown.
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 so-
nar detects and tracks the target again, the FISH mode is restored.
4. To disable the target lock, press the TARGET LOCK key.
Note: Target lock may be disengaged if the range control is operated while a
locked target is displayed.
2.11.3
Target mark mode
This mode tracks a stationary position (such as a reef) using position data fed from a
navigator.
Depth
1. Select [Target Mark] in the procedure in subsection 2.11.1.
2. On the horizontal display, use the trackball to select the location to track.
2-22
Target lock mark
Track of school of fish
(Turned ON or OFF on
Mark Display menu.)
TARGET LOCK DATA
S
C
Vector
(Heading data required)
A
B
2975m (Horizontal range)
153m (Depth)
12.3kn (Target speed)
256q (Course)
C
E
D
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