FIELD: hydroacoustic technology.
SUBSTANCE: invention relates to fish finders intended for use in fishing conditions in order to detect fish and obtain information about the bottom topography. Essence: the use of a radiating element and a linear antenna array of seven receiving elements in each of the four acoustic units, the presence of a multi-channel hardware and the introduction of a device for shaping directional characteristics made it possible to implement a simultaneous view in a wide sector with high angular resolution in two mutually perpendicular vertical planes.
EFFECT: providing a simultaneous overview of space in a wide sector with high resolution in angle.
1 cl, 8 dwg
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