Presentation Mode; Presentation Mode Description - Furuno FSV-85 Operator's Manual

2. HORIZONTAL MODE
Tracking Data: Selects which target lock tracking data to use, horizontal or slant, or
both horizontal and vertical.
Threshold: 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.
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 1kn to
15kn.
Smoothing: Sets smoothing rate for fish speed data. The higher the figure, the
smoother the position of the target lock target. Avoid oversmoothing, to prevent delay
in tracking when own ship or target moves suddenly. The setting range is 0.0 to 1.0.
Target SPD Update: Sets the interval at which fish speed data is updated. The inter-
vals are 15, 30, 45 and 60 seconds.
Target Lock Window: Selects the size of target lock detection area; normal, large,
largest. (The area is not indicated on the screen.)
Dimension Setup: Sets dimension constant for calculation of weight (ton) of school
of fish from the dimension of the school of fish.
Volume Setup: Sets volume constant for calculation of weight (ton) of school of fish
volume.
2.12

Presentation Mode

2.12.1

Presentation mode description

This sonar has four presentation modes, head-up, north-up, course-up and true mo-
tion. Select one with [Presentation Mode] in the [Others] - [Display Setting] menu.
Head-up
Head-up: The display is oriented toward ship's heading. The heading direction ap-
pears at the top of the display. Own ship position is fixed at the screen center. Echoes
from fish and the bottom move on the screen relative to own ship's movement. This
mode is useful for general use.
North-up: The display is oriented so North is at the top of the screen. Own ship posi-
tion is fixed at the screen center and own ship mark pivots with ship's movement. Ech-
oes from fish and the bottom move on the screen relative to own ship's movement.
Course-up: The display is oriented according to course. Own ship position is fixed at
the screen center. Echoes from fish and the bottom move on the screen relative to
own ship's movement. Targets are displayed at ship's bow.
2-24
N
N
North-up Course-up
N
True Motion