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4. SLANT MODE
4-25
4.12.4 TARGET LOCK menu
INITIAL SETTING
MENU QUIT
QUIT
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TARGET LOCK
OTHERS
TRACKING METHOD : FISH
TILT INTERLOCK :
TILT&RANGE
MARK INTERLOCK :
ESTIMATE MARK
TRACKING DATA : H&V
THRESHOLD : 16
BOTTOM THRESHOLD : 3
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
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TARGET LOCK menu
TRACKING METHOD: Selects tracking method, target mark (position) or fish.
TILT INTERLOCK: Provides automatic change of tilt angle and range or tilt
angle during target lock.
MARK INTERLOCK: Selects items of numeric/graphic data display during target
lock operation.
TRACKING DATA: Selects which tracking data to use; horizontal, or both
horizontal and vertical.
THRESHOLD: Selects the weakest echo color number to track. The setting
range is 1 to 30.
BOTTOM THRESHOLD: When a target is judged as a bottom echo, raise this
setting to differentiate bottom from target. The setting range is 0 to 5.
TARGET SPEED LIMIT: Sets maximum fish speed to track. The setting range is
1kt to 15kt.
SMOOTHING: Sets smoothing rate for fish speed data. The setting range is 0.0
to 1.0.
TARGET SPD UPDATE: Sets fish speed data update interval among 15, 30, 45
and 60 seconds.
TARGET LOCK WINDOW: Selects size of target lock detection area; normal,
large, largest. However, this area is not displayed on the screen.
DIMENSION SETUP: Sets dimension constant for calculation of fish school
tonnage from the fish school dimension.
VOLUME SETUP: Sets volume constant for calculation fish school tonnage from
fish school volume.