Furuno FSV-30, Operator'S Manual

Page: 54 / 190

2. HORIZONTAL MODE
2-24
2.11.3 Position tracking mode
This mode tracks a stationary position (such as a reef) using position data fed
from a navigator.
Depth
A B C D
E
How position tracking mode target lock works
1. Select TARGET MARK at step 7 in the procedure in paragraph 2.11.1.
2. Use the trackball to select the location to track.
3. Press the [TARGET LOCK] key to inscribe the target lock mark (
) at the
location selected. The target lock mark is also inscribed on the vertical
display.
Tilt, range and vertical bearing are automatically adjusted to track the location.
Using the figure above as an example, the target lock mark is placed on location
E. Then, the equipment remembers the location of E and automatically changes
the tilt angle as the ship moves from position A through D. As long as the fish
school E is stationary its echo is kept displayed on the screen.
2.11.4 Other items on the TARGET LOCK menu
INITIAL SETTING
MENU QUIT
QUIT
QUIT
TARGET LOCK
OTHERS
TRACKING METHOD : FISH
TILT INTERLOCK : TILT&RANGE
MARK INTERLOCK : ESTIMATE MARK
TRACKING DATA : H&V
THRESHOLD : 16
TARGET SPEED LIMIT : 5kt
SMOOTHING : 0.5
TARGET SPD UPDATE : 60sec
TARGET LOCK WINDOW : NORMAL
DIMENSION SETUP : 25t/1000m
2
VOLUME SETUP : 25t/1000m
3
QUIT
TARGET LOCK menu