III-161
(1) INTERFERENCE REJECTION
This is described in Section 2-14-3.
(2) INTERFERENCE LEVEL
This is described in Section 2-14-3.
(3) DISCRIMINATION
The DISCRIMINATION process refers to average processing.
It is used to smoothly display a response from a fish school, and to reduce
noise appearing on the screen.
DISCRIMINATION has HORIZONTAL for processing in the horizontal
direction, and VERTICAL for processing in the vertical direction.
(4) DRAFT
DRAFT refers to the distance from the water surface to the transducer.
By adding the draft distance as offsetting, measurement depth from the water
surface to a fish school can be displayed.
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