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The FSV-84 is a new full-circle color scanning sonar with a transducer having 
highly  sensitive  elements.  It  offers  high  resolution  image  in  all  ranges.  Its 
detection  range  capability  has  been  improved  significantly  compared  to 
conventional scanning sonar utilizing an equal frequency. 
A variety of presentation modes are available for efficient fishing operation in 
various fishing methods. Adding to conventional presentation modes such 
as full circle and vertical mode, FSV-84 offers Dual Full Scan mode which 
simultaneously shows two full-circle scans at different tilt angles or range, 
and Slant mode for 180-degree half-circle fan picture. Viewing from various 
perspectives,  it  helps  to  detect  fish  schools  faster,  to  find  more  lucrative 
fishing grounds and to grasp the timing of the net shooting.
In addition, FSV-84 features advanced functions such as Auto Filter and a 
stabilization  system  for  skippers  to  observe  targets  even  in  foul  weather 
conditions.  With  its  user-friendly  interface,  often-used  functions  can  be 
enabled in one touch.

The groundbreaking 360-degree color scanning

from both shorter to longer range.

The groundbreaking 360-degree color scanning    

sonar provides high resolution images 

from both shorter to longer range.

FULL-CIRCLE COLOR SCANNING SONAR

Photo: 

Control unit with 

optional monitor MU-190HD

6 function keys

10 User program control

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Auto Filter provides the clear view of targets

The Auto Filter enables stable observation of target even 
when the vessel is moving fast (under 18 knots). Additionally, 
the filter also reduces the influence of propeller noise and 
clutter from other vessels.

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Beam stabilization

The stabilizer keeps the beam on the designated target even 
in rough seas. The bottom and fish echoes are presented 
without undulation.

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Tracking a fish school (target lock)

The target lock function automatically tracks a fish school so 
you won’t lose sight of it on the display. Two types of target 
lock are available: position tracking (TARGET MARK) and fish 
school tracking (FISH).

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User program control and six function keys

The user program control provides for instant setup of the 
equipment according to fishing ground or target fish.
Ten programs may be set up, and vertical and horizontal 
display settings may be programmed together or individually. 
The function keys also provide one-touch display of desired 
menu item or entire menu. 

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Customizable user menu

You may program 10 often-used menu items to the user 
menu area in the menu.

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Fish alarm

 

When a speaker (option) is connected, the fish alarm sounds 
the aural alarm if a fish echo above a preset strength enters 
the operator-set alarm zone.

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Built-in transceiver

A compact built-in transceiver with power unit allows 
simplified retrofitting.

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Utilizing common tank to conventional sonar

The transducer tank is common to the CSH-83 for reducing 
cost and time of installation.

* Convert kit needed

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Remote controlling and watching at upper bridge

Up to three display units can be installed anywhere (such as 
upper bridge) to monitor fish movement from remote 
locations. A remote controller is also available.

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Fish histogram

The fish histogram shows, in graph form, signal strength 
distribution for the fish school(s) marked with an estimate 
mark on the horizontal and echo sounder displays.

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The innovative full-circle color scanning sonar designed for purse seiners and trawlers, 

  ideal for mackerel and tuna detection

  FSV-84’s various and flexible presentation offers efficient fishing operation especially for purse seiners and trawlers. It offers 

skippers to evaluate fish schools both around and under the vessel, and to keep tabs on caught fish inside the net. The powerful 
high frequency sonar detects weak and fast moving targets even under harsh conditions.

Trawlers

Purse seiners

The horizontal axis 
shows signal strength 
in 16 colors, and the 
vertical axis shows fish 
school concentration 
inside the fish estimate 
mark.

fish estimate mark

Summary of Contents for FSV-84

Page 1: ...Control unit with optional monitor MU 190HD 1103 pdf Catalogue No E 404b FURUNO ELECTRIC CO LTD Nishinomiya Hyogo Japan www furuno co jp FURUNO U S A INC Camas Washington U S A www furunousa com FURUNO UK LIMITED Havant Hampshire U K www furuno co uk FURUNO FRANCE S A S Bordeaux Mérignac France www furuno fr FURUNO ESPAÑA S A Madrid Spain www furuno es FURUNO DANMARK AS Hvidovre Denmark www furuno...

Page 2: ...chool so you won t lose sight of it on the display Two types of target lock are available position tracking TARGET MARK and fish school tracking FISH sUser program control and six function keys The user program control provides for instant setup of the equipment according to fishing ground or target fish Ten programs may be set up and vertical and horizontal display settings may be programmed toge...

Page 3: ...er can be reduced by adjusting the Tx output instead of turning down the gain The picture becomes clearer when output power is reduced rather than when the GAIN is decreased as illustrated below Beam Stabilization Thanks to FSV 84 s built in motion sensor the beam stabilization mode maintains the sonar beam at required tilt by compensating for ship s pitching and rolling This gives an unwavering p...

Page 4: ...ntal 12 6º x Vertical 10 1º 6 dB full width Tilt Angle 5º to 90º Vertical Tx Beam width Horizontal 12 7º x Vertical 118 2º 6 dB full width Vertical Rx Beam width Horizontal 12 6º x Vertical 12 1º 6 dB full width Vertical Search Range 0º to 90º S Tx Beam width Horizontal 206 7º x Vertical 12 1º 6 dB full width S Rx Beam width Horizontal 12 6º x Vertical 12 0º 6 dB full width Tilt Angle 5º to 90º 9 ...

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