Furuno CH-37 Operator's Manual page 55

Display of net hauling
This is an example of net hauling display. The location of the
net is indicated clearly. (Ship is stopped.)
Own ship
Backward
FORE AFT
Net
Figure 3-13 Net hauling and sonar picture
False echo
In a shallow water (less than 100 m) detection, unwanted ech-
oes shown in the figure may appear. This phenomenon is
caused by the false echo from the previous transmission. Re-
ducing the Tx rate on the BOTTOM/3D menu may lessen this
effect.
Fish
Bottom
False echo
Range
Figure 3-14 False echoes
TIP! Training indicator and screen display.
Starboard-port Fore-aft Aft-fore
PORT STBD AFT FORE FORE AFT
¡Shows starting position of the sounding beam.
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