Fish Finder

STABILIZED FISH SIZE INDICATOR

Model FCV-38

Stable echo presentation in all sea conditions!

Optimize your fishing operation with Multi-direction detection and Split-beam technology

Fishing Vessels、Workboats

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Features

Echo images from 5 different directions received simultaneously with the multi-beam system

The FCV-38 can detect school of fish in five directions at once and provides information on the location of the targeted fish in relation to the vessel. The operator can adjust the five beams in any direction within a 20 degree range in the menu settings.

Three Types of Split-Beam Mode

For five beam transmission, you can freely activate or deactivate simultaneous transmission and adapt it to your needs by using three types of split-beam mode* in the setting menu: Alternating transmission, Semi-simultaneous and simultaneous transmission.

Semi-simultaneous transmission is new function which limits beam-to-beam interference and makes the seabed easier to identify than with the simultaneous beam transmission mode.

The timing of the transmission has been optimised to accelerate the transmission cycle of the beam even with 5 beams.

Alternating transmission

Five beams are alternately transmitted

Semi-simultaneous transmission

Some beams are simultaneously

Simultaneous transmission

Five beams are transmitted in succession

The screen is drawn faster in this mode, however unwanted echoes (false seabed echoes) may appear.

Built-in motion sensor provides a stabilized target presentation in rough sea conditions

Pitching and rolling compensation

Pitching and rolling produces adverse effect not only on the sounding image, but also on measurement of fish size. With FURUNO exclusive Stabilizer Technology, the FCV-38 can stabilize both TX and RX beams independently so that the picture will remain accurate.

Stabilizer keeps the beam on the designed target.

A beam affected by pitching and rolling fails to detect the target fish.

Accurate fish size measurements in easy-to-understand graph form*

The FCV-38 measures the size of fish in the selected area, and displays the information in a graph that can be understood at a glance. The split-beam technology has improved the accuracy and reliability of fish size measurements and graphs (max. 3).

By analyzing the size, volume and movement of a targeted school of fish, operators can easily decide what to catch and what not to catch. It is indispensable for deciding when to go for a catch and eliminate a school of fish that are smaller than desired. In addition, it greatly contributes to the management and study of fisheries resources.

Fish length is a reference value calculated from reflection intensity.

FCV-38 has four methods of fish size measurement. You can select your favorite measurement method from InstantAccess bar™ by just clicking on the menu button.

The fish size measurement function includes particularly useful tools to help the user keep track of targets. For example, the tool [Auto Depth] automatically adjusts the depth of the measurement area until more fish are detected if the target fish has fallen below the set limit or has left the measurement area. The tool [Auto Area] can be used to automatically move and adjust the measurement area to areas with a large number of single fish.

Fish size graph

The fish size graph shows fish size within a user-selected measuring area.
The bar graph shows size and proportion of fish in the measuring area selected.

Target graphs

The target graphs plot, within a circle representing the target measurement range, individual fish in relation to your vessel.
Two types of graphs, vertical and horizontal are available.

Zoom modes

Zoom displays enlarge the specified area of the split-beam display. This mode allows you to learn more about the sea floor and the density of schools of fish. The four modes are bottom lock, bottom zoom, marker zoom, and bottom discrimination.

The expansion range is available from 2m to 200m depth. You can also freely change the window size by dragging and dropping the window frame.

Screenshots and echo data can be recorded and play back

A maximum of 99 screenshots can be saved on the processing unit. You can also replay the echo display at any time if you wish to see it again*¹. This is helpful in comparing the sizes of schools of fish. For external memory devices*², the number of files that can be saved depends on the capacity of the device.

All echoes stop when the scroll back mode is activated.
Optional supply.

Easy and quick operation

The FCV-38 can be operated easily and quickly with its trackball. The screen header also contains Range, Shift, Sensitivity, Image Feed, and Display Mode menus that can be immediately accessed when required. Other functions can also be accessed immediately by setting them in the InstantAccess bar™ as desired*.

Up to 10 icons can be set in the InstantAccess bar™.

Trackball control unit

InstantAccess bar™

Scientific data output

The output of scientific data in netCDF4 format will contribute to fish stock assessment etc. Data analysis software that can read data in netCDF format is currently being developed in some institutes*.

We recommend to check with the nearest dealer

Calibration

Calibration is mandatory for acoustic resource surveys. Thanks to a more accurate calibration function and an improved user interface, you can easily check the status of the data acquisition. In addition, the detection zone, its progress and completion can be viewed at a glance on the calibration screen.