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2.12.4
Target lock menu description
Target lock functions not previously mentioned are described below.
Page 1
[2 Tilt Interlock]
[3 Mark Interlock]
Page 2
[1 Threshold]
[2 Bottom Threshold]
[3 Target Speed Limit]
[4 Smoothing]
[5 Target Speed Update]
[6 Target Lock Window]
[7 Dimension Coefficient]
Provides automatic change of tilt angle and range or tilt
angle in target lock. Setting range: [OFF] (no automatic
change), [Tilt ] (tilt angle), [Tilt & Range] (tilt angle and
range)
Turns numeric/graphic data displays On/Off in target
lock. [OFF] turns off both the estimate mark 1, 2 histo-
gram and data display. [Estimate Mark] enables the esti-
mate mark 1, 2 histogram. [Est & Fish Info] enables the
both the estimate mark 1, 2 histogram and data display.
Selects the minimum signal level to use in target lock
tracking. The setting range is 1 to 30. Target lock tracks
a target whose signal level is greater than set here.
When a target is judged as a bottom echo, raise this set-
ting to differentiate bottom from target. The setting range
is 0 to 5.
Sets maximum fish speed to track. The setting range is
1kn to 15kn.
Sets smoothing rate for fish speed data. The higher the
figure, the smoother the position of the target lock target.
Avoid over-smoothing, to prevent delay in tracking when
own ship or target moves suddenly. The setting range is
0.0 to 1.0.
Sets the interval at which fish speed data is updated. The
intervals are 15, 30, 45 and 60 seconds.
Selects the size of target lock detection area; normal,
large, largest. (The area is not indicated on the screen.)
Sets dimension constant for calculation of weight (ton) of
school of fish from the dimension of the school of fish.
2. SLANT MODE
2-23
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