Furuno FSV-84 Operator's Manual
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Furuno FSV-84 Operator's Manual

Color scanning sonar
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COLOR SCANNING SONAR
FSV-84

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  • Page 1 COLOR SCANNING SONAR FSV-84...
  • Page 2 Printed in Japan All rights reserved. All rights reserved. Pub. No. OME-13290 Pub. No. OME-13290 ( ( DAMI DAMI ) ) FSV-84 FSV-84 The paper used in this manual is elemental chlorine free. FURUNO Authorized Distributor/Dealer FURUNO Authorized Distributor/Dealer FIRST EDITION : FIRST EDITION : SEP.
  • Page 3 • Store this manual in a convenient place for future reference. • FURUNO will assume no responsibility for the damage caused by improper use or modification of the equipment (including software) by an unauthorized agent or a third party.
  • Page 4 Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO agent for service. Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire.
  • Page 5 WARNING LABELS Warning labels are attached to the units of the system. Do not remove the labels. If a label is missing or damaged, contact a FURUNO agent or dealer about replacement. DANGER DANGER Electrical shock hazard.
  • Page 6 SAFETY INSTRUCTIONS This page intentionally left blank.

  • Page 7: Table Of Contents

    2.7.2 Decrease pulse length ...2-18 2.7.3 Adjust 2 2.7.4 Adjust Near AGC...2-19 Suppressing Bottom and Sea Surface Reflections in Shallow Waters ...2-20 Rejecting Sonar Interference and Noise ...2-21 2.9.1 Identifying noise source ...2-21 2.9.2 Interference rejector...2-21 2.9.3 Changing Tx interval ...2-22 2.9.4 Shifting Tx frequency ...2-22...
  • Page 8 SAFETY INSTRUCTIONS 2.9.6 Echo average ... 2-23 2.9.7 Reverberation reduction ... 2-23 2.9.8 Setting reference bearing for frequency change ... 2-23 2.9.9 Suppressing gain of bottom echo ... 2-23 2.9.10 Sidelobe suppression... 2-24 2.10 Adjusting Beamwidth ... 2-25 2.11 Tracking a Fish School (target lock) ... 2-26 2.11.1 Selecting target lock type ...
  • Page 9 3. VERTICAL MODE...3-1 Basic Operating Procedure ...3-1 Vertical Mode Concept...3-2 3.2.1 Overview...3-2 3.2.2 Setting the vertical display ...3-2 Vertical Mode Indications and Marks...3-3 3.3.1 Typical vertical display ...3-3 3.3.2 Vertical bearing mark, tilt mark ...3-4 3.3.3 Trackball mark position reference mark...3-5 Auto Train ...3-5 Display Range...3-6 Measuring the Range ...3-6...
  • Page 10 AGC ... 4-15 4.8.4 Adjust Near AGC ... 4-16 Suppressing Bottom and Sea Surface Reflections in Shallow Waters ... 4-17 4.10 Rejecting Sonar Interference and Noise... 4-18 4.10.1 Identifying noise source ... 4-18 4.10.2 Interference rejector ... 4-18 4.10.3 Changing Tx interval... 4-19 4.10.4...
  • Page 11 4.22.3 Sea surface reflections...4-46 4.22.4 Wake...4-46 4.22.5 False echo by sidelobe ...4-47 4.22.6 Noise and interference ...4-47 5. ECHO SOUNDER MODE ...5-1 Basic Operating Procedure ...5-1 Typical Echo Sounder Displays ...5-2 5.2.1 Echo sounder 1 display...5-2 5.2.2 Echo sounder 2 (net recorder or echo sounder) display...5-3 5.2.3 Echo sounder combination mode (ES1 + ES2) ...5-4 Selecting an Echo Sounder Mode...5-6 Selecting Display Range...5-8...
  • Page 12 SAFETY INSTRUCTIONS 9.2.2 DISPLAY SETTING menu description ... 9-2 ALARM & AUDIO menu ... 9-4 9.3.1 Opening the ALARM & AUDIO menu... 9-4 9.3.2 ALARM & AUDIO menu description... 9-4 PRESET, MEMORY CARD menu... 9-5 9.4.1 Opening the PRESET, MEMORY CARD menu... 9-5 9.4.2 PRESET, MEMORY CARD menu description...

  • Page 13: Foreword

    A Word to the Owner of the FURUNO FSV-84 Congratulations on your choice of the FURUNO FSV-84 Color Scanning Sonar. We are confident you will see why the FURUNO name has become synonymous with quality and reliability. For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for quality marine electronics equipment.
  • Page 14 FOREWORD • Audio function allows monitoring of echoes along user-selected area through built-in loudspeaker. • Fish mark estimates fish speed. • Fish estimate feature compares volume of two fish schools. • Target lock automatically tracks fish school. • Net course mark shows probable drift of net against tide.

  • Page 15: System Configuration

    SYSTEM CONFIGURATION System with locally supplied monitor External Monitor CONTROL UNIT FSV-8401 Loudspeaker Echo Sounder, Current Indicator, other Navigator 1 Navigator 2 External Interface CS-120A (Note 1) 100-115/ 220-230 VAC, 1φ, 50/60 Hz Satellite Compass SC-50/110 100/110/115/ 220/230 VAC, 1φ, 50/60 Hz Note 1: Power Kit (option, installed in processor unit) required to connect CS-120A.
  • Page 16 SYSTEM CONFIGURATION System with FURUNO monitor MONITOR UNIT FSV-2400 CONTROL UNIT FSV-8401 Loudspeaker Sub Monitor Echo Sounder, Current Indicator, other Navigator 1 Navigator 2 External Interface CS-120A (Note 1) 100-115/ 220-230 VAC, 1φ, 50/60 Hz Satellite Compass SC-50/110 100/110/115/ 220/230 VAC, 1φ, 50/60 Hz...

  • Page 17: Operational Overview

    2, or horizontal/ vertical, horizontal/half-circle) for which to adjust sensitivity, select range. Adjusts volume of internal and external (option) loudspeaker. Adjusts display brilliance (supplied monitor only). FSV-84 Deletes Sets transducer trackball- tilt angle selected (horizontal mark. mode). SHOOT:...

  • Page 18: Turning The Power On/Off

    1. OPERATIONAL OVERVIEW Turning the Power On/Off 1.2.1 Turning the power on Press the POWER ON (|) switch. A beep sounds, the lamp above the switch lights, and the last-used mode is presented. 1.2.2 Turning the power off 1. First retract the transducer with the [ ] key. The lamp above the switch blinks while the transducer is being raised and lights steadily when it is fully raised.

  • Page 19: Lowering, Raising The Transducer

    Lowering, Raising the Transducer Maximum speed while the transducer is projected and being raised or lowered is as below, to prevent damage to the transducer. 800 mm stroke 1100 mm stroke Max. 18 kt Max. 15 kt 1.3.1 Lowering the transducer With the boat at the fishing ground, press the [ ] or [ ] key.

  • Page 20: Control Panel Dimmer

    1. OPERATIONAL OVERVIEW Control Panel Dimmer The dimmer for the control panel may be adjusted on the DISPLAY SETTING menu as below. 1. Press the [MENU] key to open the main menu. 2. Use the trackball to select OTHERS and press the [MENU] key. MENU QUIT TX PULSE LENGTH-H : 9...
  • Page 21 3. Use the trackball to select DISPLAY SETTING and press the [MENU] key. MENU OTHERS DISPLAY SETTING DISPLAY MODE... MODE SELECTION TX/RX MODE H2/S DISPLAY PRESENTATION MODE : HEAD UP TM DISPLAY RANGE BEARING REF TILT LEVER S AUTO OFF CENTER : OFF H-SLICE WIDTH H-SLICE PICT ADVC NET COURSE MARK...

  • Page 22: Display Mode, Display Division

    1. OPERATIONAL OVERVIEW Display Mode, Display Division This sonar provides a total of ten display mode selections: Horizontal, Horizontal2, S, S combination, Vertical1, Vertical1, Vertical2, Vertical1 + ES1 (echo sounder), Vertical 1 + ES2 (net recorder), History, ES1, ES2, and ES1 + ES2.

  • Page 23: Sample Display Mode Pictures

    1.6.2 Sample display mode pictures Below are typical pictures. For sake of brevity, indications and marks are not shown. For meaning of marks and indications, see respective indications and marks description illustration in applicable chapter. Horizontal mode This mode provides 360-degree coverage around the vessel and it is useful for general search.
  • Page 24 1. OPERATIONAL OVERVIEW H2 mode This mode provides two horizontal screens in one of the configurations shown below. The default configuration, LANDSCAPE, shows two horizontal displays up and down. Other configurations available are as shown below. Desired configuration may be chosen with H2 DISPLAY in the DISPLAY SETTING menu. For further details, see Chapter 2.

  • Page 25: Fish School

    Slant mode, single display The Slant mode shows a 180-degree cross section, using chosen tilt angle and train setting. Slant mode, combination display 902m 9.83NM N-UP 5:32 678m 346m 278˚ W 12m/s 1475m 156m (164m) 32˚52.150N R 1056m 128˚ 132˚12.150E 234˚...
  • Page 26 1. OPERATIONAL OVERVIEW V1 and V2 modes The V1 and V2 modes show a vertical slice of the bearing selected by the vertical bearing mark on the horizontal display. The vertical 2 mode provides two vertical slices. Chapter 3 discusses the vertical mode. 1000 1500 2000...
  • Page 27 History mode The history mode shows the horizontal and history displays. Echo data for the echoes within the history marker on the horizontal display scroll down the history display in the downward direction – the latest echoes at the top and the oldest at the bottom.
  • Page 28 1. OPERATIONAL OVERVIEW ES2 mode The ES2 mode shows the net recorder display. The net recorder display can show the downward looking picture alone or both the downward and upward looking pictures. Note that this mode can also show the echo sounder picture. Horizontal Display ES2 display (shown: downward picture) ES1 + ES2 mode...

  • Page 29: Adjusting The Gain

    Adjusting the Gain The [GAIN] control adjusts receiver gain (sensitivity) for the horizontal, slant vertical modes. Adjust it so fish echoes are clearly displayed with minimal noise on the screen. Too high a gain setting not only displays excess noise and makes it difficult to discriminate wanted echoes but also causes bottom echoes to be painted in strong colors, resulting in echoes being masked by bottom reflections.

  • Page 30: Menu Overview

    1. OPERATIONAL OVERVIEW Menu Overview Most operations are carried out through the menu. This section provides basic menu operating information. 1. Press the [MENU] key to open the main menu. USER MENU This menu may be programmed as desired (max. 10 items).
  • Page 31 2. Select menu desired with the trackball and press the [MENU] key. (For example, select the H-SCAN SETTING menu.) MENU TITLE H-SCAN SETTING Select QUIT with trackball TX INTERVAL and press the [MENU] TX PULSE LENGTH key to close menu currently open.
  • Page 32 1. OPERATIONAL OVERVIEW 3. Select menu item desired with the trackball and press the [MENU] key. (For example, select NOISE LIMITER.) A dialog box for the corresponding menu item appears. MENU H-SCAN SETTING TX INTERVAL TX PULSE LENGTH TX POWER TVG-NEAR TVG-MEDIUM TVG-FAR...
  • Page 33 Note: In the default setting, the sub menu item INITIAL SETTING in the OTHERS menu and some items in the INITIALIZATION menu are shown in red. This means their items are locked to prevent accidental change of setting. When you open one of these sub menus and select an item, the message below appears.
  • Page 34 1. OPERATIONAL OVERVIEW This page intentionally left blank. 1-18...

  • Page 35: Horizontal Mode

    : Mid protrusion : Full protrusion Turn on power. Select range. Select horizontal display. Adjust display brilliance. FSV-84 Set tilt angle. Adjust gain. Press to choose the screen (horizontal or vertical, or horizontal1 or horizontal2) to adjust gain and range.

  • Page 36: Indications And Marks

    2. HORIZONTAL MODE Indications and Marks 2.2.1 Horizontal mode The horizontal mode provides a 360° picture around the boat. To display the horizontal mode picture, press the [MODE] key. Net shoot data Distance run from shooting Time from shooting Trackball data •...

  • Page 37: Horizontal2 Mode

    2.2.2 Horizontal2 mode The H2 mode shows one of four kinds of horizontal display combinations: LANDSCAPE, PORTRAIT, RIGHT INSET and LEFT INSET. Follow the procedure below to select a combination display. 1. Press the [MENU] key to open the main menu. 2.
  • Page 38 2. HORIZONTAL MODE 3. Select DISPLAY SETTING and press the [MENU] key to open the DISPLAY SETTING menu. Select H2/S DISPLAY and press the [MENU] key. 5. Select the desired combination with the trackball and press the [MENU] key. 6. Select QUIT and press the [MENU] key to finish. MENU QUIT OTHERS...
  • Page 39 7. Select QUIT at the top of the menu screen and press the [MENU] key to close all menus. 3902m 9.83NM 5:32 3678m 1346m 278˚ W 12m/s H1 display H2 display 2975m 156m (164m) 32˚52.150N 132˚12.150E 128˚ 2000 R 4000m N-UP 17˚...
  • Page 40 2. HORIZONTAL MODE 2000 LEFT INSET 2000 RIGHT INSET NUMERIC/ GRAPHIC DATA DISPLAY NUMERIC/ GRAPHIC DATA DISPLAY...

  • Page 41: Display Range

    Display Range The [RANGE] control selects the detection range. The range selected is momentarily displayed in large characters at the top of the screen. Range is always displayed at the top right hand corner of the screen. Below are the default ranges (in meters). Range Setting Range 1.

  • Page 42: Tilt Angle

    2. HORIZONTAL MODE Tilt Angle The tilt angle shows the direction to which the sound wave is emitted. When the sound wave is emitted horizontally, the tilt angle is said to be 0° and when vertically, 90°. The tilt angle can be set between –5°(upward) to 90° (downward), in increments of 1°.

  • Page 43: Automatic Tilt

    2.4.2 Automatic tilt The [AUTO TILT] key automatically scans the tilt angle within the selected width. This is useful when you want to find the center depth of a fish school. 1. Press the [AUTO TILT] key to select auto tilt angle desired. Each time the [AUTO TILT] key is pressed the auto tilt angle changes in the following sequence.
  • Page 44 2. HORIZONTAL MODE For example, when the [RANGE] control, [TILT] control and [AUTO TILT] key are ° set to 800 m, 8 and width (1) respectively, the tilt angle changes at each transmission as follows: 8° → 9° → 8° → 7° → 8° Note: The [AUTO TILT] key is inoperative when the target lock function is active or is made active.

  • Page 45: Relation Between Bottom Echo And Tilt Angle

    Case 1 Points to consider • Normally, a vertically distributed fish school is a better sonar target than the bottom, because it reflects the transmitted pulse back toward the transducer. • In case 3, both fish schools “a” and “b” are presented. Generally speaking, however, midwater fish schools tend to be larger than bottom fish schools and they are often displayed near the bottom on the display.

  • Page 46: Tilt Angle For Surface Fish

    2.4.4 Tilt angle for surface fish Sound emitted from the sonar transducer forms an oval-shaped beam with a width of approximately 18° in the vertical direction (vertical beam width at -6dB). The tilt angle is indicated by the angle between the centerline of the beam and the horizontal plane.

  • Page 47: Suitable Tilt Angle

    Refer to it to find out the suitable tilt angle for a given depth/detection range. Tilt angle and beam coverage (vertical beamwidth 18 (200) 20(40) 40(80) 60(120) 80(160) 100(200) 200(400) Vertical width of sonar beam 100 m 100 m ° 31 m ° at -6dB (400) (600) 300 m 200 m...

  • Page 48: Measuring Range And Bearing To A Target

    2. HORIZONTAL MODE Measuring Range and Bearing to a Target Operate the trackball to place the trackball mark on the target you want to measure the range and bearing. The range, bearing and depth to the target appear at the upper left corner of the screen. Trackball position may also be show in latitude and longitude.

  • Page 49: Eliminating Weak Echoes

    The FSV-84 has three TVG functions, NEAR, MEDIUM and FAR, and they mainly compensate for propagation loss on short, middle and long ranges respectively, centered at the ranges shown below.
  • Page 50 2. HORIZONTAL MODE 1. Press the [MENU] key to open the main menu. 2. Select H-SCAN SETTING with the trackball and press the [MENU] key to open the H-SCAN SETTING menu. 3. Select TVG-NEAR with the trackball and press the [MENU] key to show the dialog box.

  • Page 51: Suppressing Bottom Tail

    Note: When a fish school is located on a long-range setting (about 800 meters) and is approaching own ship do as follows: Adjust the tilt to keep the fish school in the center of the sonar beam, namely, fish school is displayed in strongest colors possible. Confirm that the fish echo is displayed in the same color as it approaches.

  • Page 52: Decrease Pulse Length

    While it is ideal to suppress bottom echoes with the AGC alone there are some fishing grounds where this is not possible. (The high power sonar has the advantage of long-range detection but this can also be a disadvantage, since weaker echoes may be hidden in strong, unwanted echoes such as the bottom.)

  • Page 53: Adjust Near Agc

    2.7.4 Adjust Near AGC When an excessively strong echo is received in shallow or heavily sedimented waters, you may not be able to suppress it by the TVG control alone. In this case, a fish school which is displayed at more than 300 m away may disappear gradually when the ship is approaching the fish school.

  • Page 54: Suppressing Bottom And Sea Surface Reflections In Shallow Waters

    2. HORIZONTAL MODE Suppressing Bottom and Sea Surface Reflections in Shallow Waters In shallow fishing grounds with hard or rocky bottom, bottom reflections often interfere with wanted fish echoes and they can not be eliminated sufficiently with the aforementioned TVG and AGC functions, especially when the TILT is set to a larger angle in order to track fish schools approaching within 400 m.

  • Page 55: Rejecting Sonar Interference And Noise

    1. Stop transmission on the TEST menu, by turning ON “TX” in the TEST menu, and turn on the power of all on-board equipment one by one while observing the picture. If noise appears on the sonar display, that equipment is emitting noise. Check the offending equipment’s ground and installation.

  • Page 56: Changing Tx Interval

    6. Select QUIT at the top of the menu screen and press the [MENU] key to close all menus. Note: When the sonar is used in shallow water with the range set between 60 m and 200 m and Tx cycle at “9”, bottom reflections caused by the 2nd-to-the-last transmission may appear on near ranges.

  • Page 57: Noise Limiter

    358°. Note: The FREQ/BEARING SET function is active only when the SIDELOBE SUPPRESSION on the SYSTEM MENU is set to 1 or 2. For details, contact a FURUNO agent or dealer. 2.9.9 Suppressing gain of bottom echo None-moving echoes such as bottom echo, plankton echo, etc., may be suppressed by the setting of BOTTOM SUPPRESS in the H-SCAN SETTING menu (moving echoes such as fish school are not effected by this setting).

  • Page 58: Sidelobe Suppression

    2. HORIZONTAL MODE 2.9.10 Sidelobe suppression Sidelobes are fairly emissions generated outside the main beam. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidelobe. To reduce the effect of sidelobes, adjust SIDELOBE SUPPRESS from the H-SCAN SETTING menu.

  • Page 59: Adjusting Beamwidth

    2.10 Adjusting Beamwidth The horizontal beamwidth of the Rx beam can be adjusted at the OTHERS menu as below to raise the horizontal resolution. 1. Press the [MENU] key to open the menu. 2. Select H-SCAN SETTING and press the [MENU] key. 3.

  • Page 60: Tracking A Fish School (Target Lock)

    Two types of target lock are available: position tracking (TARGET MARK) and fish school tracking (FISH) and you may select one from the menu as below. Default setting is “FISH.” However, if the FSV-84 cannot receive an echo of sufficient level of echo, tracking may not be performed.

  • Page 61: Fish School Tracking Mode

    (see next section) at that position. • When the FSV-84 detects and tracks the target again, the mode returns to the fish school mode. 4. To turn off the target lock, press the [TARGET LOCK] key again.

  • Page 62: Position Tracking Mode

    2. HORIZONTAL MODE 2.11.3 Position tracking mode This mode tracks a stationary position (such as a reef) using position data fed from a navigator. Depth How position tracking mode target lock works 1. Select TARGET MARK at step 7 in the procedure in section 2.11.1. 2.

  • Page 63: Target Lock Menu

    2.11.4 TARGET LOCK menu TRACKING METHOD: Selects tracking method, target mark (position) or fish. TILT INTERLOCK: Provides automatic change of tilt angle and range or tilt angle during target lock. MARK INTERLOCK: Selects items of numeric/graphic data display during target lock operation.

  • Page 64: Detecting Fish Schools Aurally

    Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from fish schools and seabed through the built-in speaker.

  • Page 65: Selecting Audio Sector

    2.12.2 Selecting audio sector 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select ALARM & AUDIO and press the [MENU] key. 4. Select AUDIO SECTOR and press the [MENU] key to open the dialog box. 5.

  • Page 66: Automatic Training

    2. HORIZONTAL MODE 2.12.3 Automatic training You may automatically scan the audio sector and audio bearing mark in the sector of 12°, 24° or 36° as below. 1. First activate the range and audio bearing marks with the [R/B AUDIO] key. 2.

  • Page 67: Presentation Mode

    2.13 Presentation Mode 2.13.1 Presentation mode description This sonar has four presentation modes, head-up, north-up, course-up and true motion, and you may select one with PRESENTATION MODE in the OTHERS - DISPLAY SETTING menu. Head-up Head-up: The display is oriented toward ship’s heading. Own ship position is fixed at the screen center.

  • Page 68: How To Select A Presentation Mode

    2. HORIZONTAL MODE 2.13.2 How to select a presentation mode 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select DISPLAY SETTING and press the [MENU] key. 4. Select PRESENTATION MODE and press the [MENU] key to open the dialog box.

  • Page 69: Fish Alarm

    2.14 Fish Alarm The fish alarm sounds the aural alarm when a fish echo above a preset strength enters the operator-set alarm zone. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3.
  • Page 70 2. HORIZONTAL MODE Note 1: There must be at least three degrees difference between the starting and ending points to get a fan-shaped alarm zone as shown in (a) and (b) below. Otherwise, the unit paints a 360-degree alarm zone as in (c) where there is less than 3 degrees between the starting and ending points and (d) where the bearing marker has been rotated one full turn.

  • Page 71: Relocating Fish School For Easy Observation

    2.15 Relocating Fish School for Easy Observation Use the offcenter feature to relocate a fish school. 1. Operate the trackball to place the trackball mark on the position where you want to relocate the own ship mark. 2. Press the [OFF CENTER] key. 3.

  • Page 72: Comparing Fish School Concentration

    2. HORIZONTAL MODE 2.16 Comparing Fish School Concentration You can get an estimate of the volume of two fish schools by using the two ESTIMATE keys as follows: 1. Operate the trackball to place the trackball mark on a fish school, and then press the [ESTIMATE 1] key.

  • Page 73: Measuring Fish School Speed

    2.17 Measuring Fish School Speed To ensure a good haul, it is important to estimate the direction and speed of the fish school before shooting the net. You can do this with the [FISH] key. With tidal current data plus fish speed data, you can determine the timing of the net shooting more efficiently.

  • Page 74: Deleting Fish Marks

    2. HORIZONTAL MODE Note 3: Each time the [FISH] key is pressed the latest fish mark and ship’s speed mark change in the sequence shown below. [FISH] key pressed once 2.17.2 Deleting fish marks Fish marks can be deleted individually with the [DELETE MARK] key or by earliest entry through the menu.

  • Page 75: Event Mark, Own Ship Position Mark

    2.18 Event Mark, Own Ship Position Mark The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position. 10 such marks may be inscribed on the horizontal display. This function requires speed and heading data. There are two types of event marks, latest event mark ( ⊕...

  • Page 76: Entering An Own Ship Position Mark

    2. HORIZONTAL MODE Plotting an event mark on the display is equivalent to dropping a buoy with an anchoring chain that extends from surface to bottom. The buoy is fixed at its geographical location, but the marker on the display moves to a point where present beam plane intersects the anchor chain of the buoy as ship moves or the tilt angle is changed.
  • Page 77 Deleting event marks, own ship position mark from the menu 1. Press the [MENU] key to show the menu. 2. Select OTHERS and press the [MENU] key. 3. Select ERASE MARKS and press the [MENU] key. OTHERS ERASE MARKS EVENT MARK FISH MARK OWN SHIP POS MARK : DELETE SHIP'S TRACK...

  • Page 78: Net Course Mark

    2. HORIZONTAL MODE 2.19 Net Course Mark Before shooting the net, decide the shoot timing considering tide direction, distance to the fish school and moving direction of the fish school. Use the net course mark as a guide to decide the timing. This function requires speed and heading data.

  • Page 79: Observing Net Behavior

    2.20 Observing Net Behavior With net sonde connection you can observe net behavior after the throwing of the net. Accurate depiction of net sonde position depends on proper setting of the distances between net sonde transmitters. You can set those distances on the OTHERS - INITIAL SETTING - NET SONDE SETTNG menu.

  • Page 80: Storing, Recalling Picture

    2. HORIZONTAL MODE 2.21 Storing, Recalling Picture The current picture can be stored in the memory, and recalled whenever desired. This feature is useful for analyzing echoes. 2.21.1 Storing the picture 1. Press the [MENU] key to open the menu. 2.

  • Page 81: Others Menu

    2.22 OTHERS Menu This section presents an overview of the OTHERS menu on the H-SCAN SETTING menu. 2.22.1 Displaying the OTHERS menu 1. Press the [MENU] key to open the menu. 2. Select H-SCAN SETTING and press the [MENU] key to open the H-SCAN SETTING menu.

  • Page 82: Others Menu Description

    2. HORIZONTAL MODE 2.22.2 OTHERS menu description COLOR: Select color arrangement to use. The default setting is COLOR 1. COLOR SETTING…: Customizes colors. 1. Select COLOR SETTING from the OTHERS menu and press the [MENU] key. The following display appears. 2.
  • Page 83 COLOR RESPONSE…: Adjusts reflected echo strength versus echo color level for currently selected color response number. To adjust the curve, place the trackball at the point desired and press the [MENU] key. On the horizontal axis input level relative value is shown in the range from 0 to 100%.
  • Page 84 2. HORIZONTAL MODE TVG DISTANCE: Sets the TVG effective distance for near, medium and far ranges. Setting range NEAR: 50-150 m, 10 m increments MED: 300-500 m, 20 m increments FAR: 600-1000 m, 40 m increments To adjust a TVG curve, select to change the setting.

  • Page 85: Interpreting The Horizontal Display

    2.23 Interpreting the Horizontal Display This section provides information necessary for interpreting the horizontal display. 2.23.1 Bottom echoes When the tilt angle is changed, the bottom echo illustrated below will appear on the display. When the tilt is decreased (toward 0°), the bottom trace becomes wider and weaker.

  • Page 86: Fish Schools

    A fish school appears as a mass of echoes on the screen. The color of the mass shows the density of fish schools on the sonar beam. To find distribution and center point of a fish school, try several different tilt angles.

  • Page 87: Sea Surface Reflections

    To reduce sea surface reflections, set the tilt angle to 5 ° or higher, so the upper edge of the sonar beam does not hit the sea surface, or adjust TVG. When a decreased tilt angle is used, sea surface reflections cover a large area as illustrated below.

  • Page 88: Sidelobe Echoes (False Echoes)

    Sidelobe 2.23.6 Noise and interference When the fishing ground is crowded with many fishing boats, the sonar is subject to interference from ultrasonic equipment (echo sounder or sonar) on other boats as well as those on own ship. For instance, interference from the sonar operated on other boats will show itself on the display as in (A) in the figure below.

  • Page 89: Vertical Mode

    Lower transducer. : Mid protrusion : Full protrusion Turn on power. Select range. Select vertical 1 or vertical 2 display. Adjust display brilliance. FSV-84 Adjust gain. Press to select vertical display if necessary. Control unit Press appropriate key. V1/S Set vertical...

  • Page 90: Vertical Mode Concept

    The figure below illustrates the concept of the vertical mode, in comparison with the horizontal mode. The vertical mode helps you keep fast moving fish such as bonito and tuna within the sonar beam. H-Beam V- Beam 3.2.2...

  • Page 91: Vertical Mode Indications And Marks

    Vertical Mode Indications and Marks 3.3.1 Typical vertical display The vertical mode provides a vertical section of the horizontal picture. You may show the display on the right or left side of the screen in case of the vertical 1 mode.

  • Page 92: Vertical Bearing Mark, Tilt Mark

    3. VERTICAL MODE 3.3.2 Vertical bearing mark, tilt mark The vertical bearing mark is displayed with solid and dashed lines and it shows the bearing selected on the horizontal display. The circle at the top of the vertical bearing mark has a “V” inside of it in the vertical 1 mode, or “1” and “2” as appropriate when both the vertical 1 and vertical 2 modes are active.

  • Page 93: Trackball Mark Position Reference Mark

    3.3.3 Trackball mark position reference mark The trackball mark position reference mark, a solid circle, is inscribed on the vertical bearing mark when the trackball mark is placed in the vertical display. Its purpose is to show corresponding trackball mark position on the horizontal display.

  • Page 94: Display Range

    3. VERTICAL MODE Display Range The [RANGE] control selects the detection range. The range selected is momentarily displayed in large characters at the center of the vertical 1 display. Range is always displayed at the lower part of the vertical 1 display. Below are the default ranges (in meters).

  • Page 95: Eliminating Weak Echoes

    The FSV-84 has three TVG functions, NEAR, MEDIUM and FAR, and they mainly compensate for propagation loss on short, middle and long ranges respectively, centered at the ranges as shown in the figure at the bottom of page 2-13.
  • Page 96 3. VERTICAL MODE 3. Select TVG-NEAR with the trackball and press the [MENU] key. 4. Use the trackball to select the [MENU] key. The setting range is –5 to 5. The higher the setting the further the TVG works. 5. Select QUIT and press the [MENU] key. 6.
  • Page 97 When a fish school is located on a long-range setting (about 800 meters) and is approaching own ship do as follows: Adjust the tilt to keep the fish school in the center of the sonar beam, namely, fish school is displayed in strongest colors possible. Confirm that the fish echo is displayed in the same color as it approaches.

  • Page 98: Suppressing Bottom Tail

    3. VERTICAL MODE Suppressing Bottom Tail 3.8.1 Adjust AGC The AGC functions to automatically reduce the receiver gain only against strong echoes such as the bottom or a large fish school. Since weak echoes remain unaffected, a small fish school becomes easier to detect. Adjust it so that the AGC works only on bottom reflections.

  • Page 99: Adjust 2 Nd Agc

    3.8.3 Adjust 2 When an excessively strong echo is received in shallow or heavily sedimented waters, you may not be able to suppress it by the TVG control alone. In this case, a fish school which is displayed at more than 300 m away may disappear gradually when the ship is approaching the fish school.

  • Page 100: Rejecting Interference And Noise

    3. VERTICAL MODE Rejecting Interference and Noise While observing the vertical mode display, you may encounter occasional or intermittent noise and interference. These are mostly caused by on-board electronic equipment, engine or propeller noise, or electrical noise from other sonars being operated nearby. 3.9.1 Identifying noise source To eliminate noise effectively, you should first identify the noise source as...

  • Page 101: Noise Limiter

    3.9.3 Noise limiter Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s noise. The noise limiter can reduce the effects of these unwanted reflections. Raising the setting causes unwanted reflections to become colors of blue to background color. Normally a setting of 3 or 4 is sufficient.

  • Page 102: Suppressing Gain Of Bottom Echo

    3. VERTICAL MODE 3.9.7 Suppressing gain of bottom echo None-moving echoes such as bottom echo, plankton echo, etc., may be suppressed by the setting of BOTTOM SUPPRESS in the V-SCAN SETTING menu (moving echoes such as fish school are not effected by this setting). The setting range is 0 to 10.

  • Page 103: Adjusting Beamwidth

    3.10 Adjusting Beamwidth The vertical beamwidth of the Rx beam can be adjusted on the OTHERS menu to reduce surface reflections. 1. Press the [MENU] key to open the menu. 2. Select V-SCAN SETTING and press the [MENU] key. 3. Select OTHERS and press the [MENU] key. 4.

  • Page 104: Vertical Expansion Display

    3. VERTICAL MODE 3.11 Vertical Expansion Display The vertical expansion display enlarges the selected vertical display. Set the trackball mark on the desired location in the vertical 1 or vertical 2 display as desired and then press the [V1/S] or [V2] key, whichever is appropriate. 1547m 1300m 850m...

  • Page 105: Others Menu

    3.12 OTHERS Menu This section presents an overview of the OTHERS menu on the V-SCAN SETTING menu. 3.12.1 Displaying the OTHERS menu 1. Press the [MENU] key to open the main menu. 2. Select V-SCAN SETTING and press the [MENU] key to open the V-SCAN SETTING menu.

  • Page 106: Others Menu Description

    3. VERTICAL MODE 3.12.2 OTHERS menu description COLOR: Select color arrangement to use. The setting range 1-4. COLOR SETTING: Customizes colors on the vertical display. Operation is same as that for the horizontal display. For further details see “COLOR SETTING…” on page 2-48.
  • Page 107 TVG DISTANCE…: Sets the TVG effective distance for near, medium and far ranges. Setting range NEAR: 50-150 m, 10 m increments MED: 300-500 m, 20 m increments FAR: 600-1000 m, 40 m increments To adjust a TVG curve, select ▲or ▼of item desired and press the [MENU] key to change the setting.
  • Page 108 3. VERTICAL MODE VERTICAL SIZE: Selects display size from full and half. Choose “half” to expand the effective viewing area on the horizontal display, The ratio for the full-size display is H4:V3 and H4:V2 for the half-size display. Full Size 3-20 Half Size Display size...

  • Page 109: Application To Bonito And Tuna Fishing

    Tracking of bonito and tuna presents a special challenge to the sonar operator: He must try to keep them within the sonar beam, a formidable task considering their high speed and penchant for leaping and diving. The FSV-84, however, with its vertical beam, makes this task easier.

  • Page 110: Catching

    3. VERTICAL MODE 3.13.4 Catching While the sonar operator monitors the sonar for other fish schools, the crew can scatter bait and water to attract fish to the boat. 3-22 Catching...

  • Page 111: Slant Mode

    Lower transducer. : Mid protrusion : Full protrusion Turn on power. Select range. Select single "S" mode or combination "S" mode. FSV-84 Adjust tilt. Adjust gain. Select mode (horizontal/vertical, H1/H2) for range and gain adjustment. Adjust display brilliance. Push applicable key.

  • Page 112: Indications And Marks

    4. SLANT MODE Indications and Marks 4.2.1 Slant mode single display The slant mode provides a half-circle (180°) picture, with own ship at the center. To choose the slant mode single display, press the [MODE] key to choose “S”. (Presetting of DISPLAY MODE on the DISPLAY SETTING menu is required.) Net shoot data Distance run from shooting Time from shooting...

  • Page 113: Slant Mode Combination Display

    4.2.2 Slant mode combination display The slant mode combination display shows one of four kinds of horizontal display combinations: LANDSCAPE, PORTRAIT, RIGHT INSET and LEFT INSET. 1. Press the [MENU] key to open the main menu. 2. Select OTHERS with the trackball and press the [MENU] key to open the OTHERS menu.
  • Page 114 4. SLANT MODE 3. Select DISPLAY SETTING and press the [MENU] key to open the DISPLAY SETTING menu. Select H2/S DISPLAY and press the [MENU] key. Dialog box for setting slant combination display 5. Select the desired combination with the trackball and press the [MENU] key. 6.
  • Page 115 7. Select QUIT at the top of the menu screen and press the [MENU] key to close all menus. 3902m 9.83NM 3678m 1346m 278˚ W 12m/s H1 display Slant display 2975m 156m (164m) 32˚52.150N 132˚12.150E 128˚ LANDSCAPE R 4000m N-UP 5:32 AUTO (21˚)
  • Page 116 4. SLANT MODE 2000 LEFT INSET 2000 RIGHT INSET NUMERIC/ GRAPHIC DATA DISPLAY NUMERIC/ GRAPHIC DATA DISPLAY...

  • Page 117: Display Range

    Display Range The [RANGE] control selects the detection range. The range selected is momentarily displayed in large characters at the top of the screen. Range is always displayed at the top right hand corner of the screen. Below are the default ranges (in meters). Range Setting Range 1.

  • Page 118: Tilt Angle

    4. SLANT MODE Tilt Angle The tilt angle shows the direction to which the sound wave is emitted. When the sound wave is emitted horizontally, the tilt angle is said to be 0° and when vertically, 90°. The tilt angle can be set between –5°(upward) to 90° (downward), in increments of 1°.

  • Page 119: Automatic Tilt

    4.4.2 Automatic tilt The [AUTO TILT] key automatically scans the tilt angle within the selected width. This is useful when you want to find the center depth of a fish school. 1. Press the [AUTO TILT] key to select auto tilt angle desired. Each time the [AUTO TILT] key is pressed the auto tilt angle changes in the following sequence.
  • Page 120 4. SLANT MODE For example, when the [RANGE] control, [TILT] control and [AUTO TILT] key are ° set to 800 m, 8 and width (1) respectively, the tilt angle changes at each transmission as follows: 8° → 9° → 8° → 7° → 8° Note: The [AUTO TILT] key is inoperative when the target lock function is active or is made active.

  • Page 121: Auto Training

    Auto Training This feature provide automatic training of the Tx and Rx beams in left and right directions to enable search over a wide area. 1. Press the [V1/S] or [V2] key to set center angle for automatic training. Each press of those keys displays center angle for automatic training at the center of the screen..

  • Page 122: Eliminating Weak Echoes

    The FSV-84 has three TVG functions, NEAR, MEDIUM and FAR, and they mainly compensate for propagation loss on short, middle and long ranges respectively, centered at the ranges shown below.
  • Page 123 1. Press the [MENU] key to open the main menu. 2. Select S-SCAN SETTING with the trackball and press the [MENU] key to open the S-SCAN SETTING menu. MENU S-SCAN SETTING TX INTERVAL TX PULSE LENGTH TX POWER TVG-NEAR TVG-MEDIUM TVG-FAR NOISE LIMITER REVERBERATION...

  • Page 124: Suppressing Bottom Tail

    Note: When a fish school is located on a long-range setting (about 800 meters) and is approaching own ship do as follows: Adjust the tilt to keep the fish school in the center of the sonar beam, namely, fish school is displayed in strongest colors possible. Confirm that the fish echo is displayed in the same color as it approaches.

  • Page 125: Decrease Pulse Length

    While it is ideal to suppress bottom echoes with the AGC alone there are some fishing grounds where this is not possible. (The high power sonar has the advantage of long-range detection but this can also be a disadvantage, since weaker echoes may be hidden in strong, unwanted echoes such as the bottom.)

  • Page 126: Adjust Near Agc

    4. SLANT MODE 4.8.4 Adjust Near AGC When an excessively strong echo is received in shallow or heavily sedimented waters, you may not be able to suppress it by the TVG control alone. In this case, a fish school which is displayed at more than 300 m away may disappear gradually when the ship is approaching the fish school.

  • Page 127: Suppressing Bottom And Sea Surface Reflections In Shallow Waters

    Suppressing Bottom and Sea Surface Reflections in Shallow Waters In shallow fishing grounds with hard or rocky bottom, bottom reflections often interfere with wanted fish echoes and they can not be eliminated sufficiently with the aforementioned TVG and AGC functions, especially when the TILT is set to a larger angle in order to track fish schools approaching within 400 m.

  • Page 128: Rejecting Sonar Interference And Noise

    1. Stop transmission on the TEST menu, by turning on “TX” in the TEST menu, and turn on the power of all on-board equipment one by one while observing the picture. If noise appears on the sonar display, that equipment is emitting noise. Check the offending equipment’s ground and installation.

  • Page 129: Changing Tx Interval

    6. Select QUIT at the top of the menu screen and press the [MENU] key to close all menus. Note: When the sonar is used in shallow water with the range set between 60 m and 200 m and Tx cycle at “9”, bottom reflections caused by the 2nd-to-the-last transmission may appear on near ranges.

  • Page 130: Noise Limiter

    4. SLANT MODE 4.10.5 Noise limiter Weak, unwanted reflections, colored light-blue or green, appear when the water is dirty, plankton layers exists, or due to ship’s noise. The noise limiter can reduce the effects of these unwanted reflections. Raising the setting causes unwanted reflections to be displayed in colors of blue to background color.

  • Page 131: Adjusting Beamwidth

    4.11 Adjusting Beamwidth The horizontal beamwidth of the Rx beam can be adjusted at the OTHERS menu as below to raise the horizontal resolution. 1. Press the [MENU] key to open the menu. 2. Select S-SCAN SETTING and press the [MENU] key. 3.

  • Page 132: Tracking A Fish School (Target Lock)

    Two types of target lock are available: position tracking (TARGET MARK) and fish school tracking (FISH) and you may select one from the menu as below. Default setting is “FISH.” However, if the FSV-84 cannot receive an echo of sufficient level of echo, tracking may not be performed.

  • Page 133: Fish School Tracking Mode

    (see next section) at that position. • When the FSV-84 detects and tracks the target again, the mode returns to the fish school mode. 4. To turn off the target lock, press the [TARGET LOCK] key again.

  • Page 134: Position Tracking Mode

    4. SLANT MODE 4.12.3 Position tracking mode This mode tracks a stationary position (such as a reef) using position data fed from a navigator. Depth How position tracking mode target lock works 1. Select TARGET MARK at step 7 in the procedure in section 4.12.1. 2.

  • Page 135: Target Lock Menu

    4.12.4 TARGET LOCK menu TRACKING METHOD: Selects tracking method, target mark (position) or fish. TILT INTERLOCK: Provides automatic change of tilt angle and range or tilt angle during target lock. MARK INTERLOCK: Selects items of numeric/graphic data display during target lock operation.

  • Page 136: Detecting Fish Schools Aurally

    Sometimes you may be preoccupied with other tasks and unable to concentrate on watching the sonar picture. In such cases it would be a good choice to use the audio function. This function enables you to monitor echoes from fish schools and seabed through the built-in speaker.

  • Page 137: Selecting Audio Sector

    4.13.2 Selecting audio sector 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select ALARM & AUDIO and press the [MENU] key. 4. Select AUDIO SECTOR and press the [MENU] key to open the dialog box. 5.

  • Page 138: Offcenter

    4. SLANT MODE 4.14 Offcenter 4.14.1 Manual offcenter The manual offcenter feature is useful for relocating fish school on the display. 1. Operate the trackball to place the trackball mark on the position where you want to relocate the own ship mark. 2.

  • Page 139: Automatic Offcenter

    4.14.2 Automatic offcenter The slant mode display in the slant mode combination display (portrait or landscape) can be automatically off centered when the train is changed while using auto train or target lock or the user changes the train angle manually. This is useful to maintain effective range ratio at 1.0.

  • Page 140: Fish Alarm

    4. SLANT MODE 4.15 Fish Alarm The fish alarm sounds the aural alarm when a fish echo above a preset strength enters the operator-set alarm zone. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3.
  • Page 141 How to set the fish alarm zone Note 1: There must be at least three degrees difference between the starting and ending points to get a fan-shaped alarm zone as shown in (a) and (b) below. Otherwise, the unit paints a 360-degree alarm zone as in (c) where there is less than 3 degrees between the starting and ending points and (d) where the bearing marker has been rotated one full turn.

  • Page 142: Comparing Fish School Concentration

    4. SLANT MODE 4.16 Comparing Fish School Concentration You can get an estimate of the volume of two fish schools by using the two ESTIMATE keys as follows: 1. Operate the trackball to place the trackball mark on a fish school, and then press the [ESTIMATE 1] key.

  • Page 143: Measuring Fish School Speed

    4.17 Measuring Fish School Speed To ensure a good haul, it is important to estimate the direction and speed of the fish school before shooting the net. You can do this with the [FISH] key. With tidal current data plus fish speed data, you can determine the timing of the net shooting more efficiently.

  • Page 144: Deleting Fish Marks

    4. SLANT MODE Note 3: Each time the [FISH] key is pressed the latest fish mark and ship’s speed mark change in the sequence shown below. [FISH] key pressed once 4.17.2 Deleting fish marks Fish marks can be deleted individually with the [DELETE MARK] key or by earliest entry through the menu.

  • Page 145: Event Mark, Own Ship Position Mark

    4.18 Event Mark, Own Ship Position Mark The event mark is useful for finding the horizontal range, depth and bearing to a location some distance from current position. 10 such marks may be inscribed on the horizontal display. This function requires speed and heading data. There are two types of event marks, latest event mark ( ⊕...

  • Page 146: Entering An Own Ship Position Mark

    4. SLANT MODE Plotting an event mark on the display is equivalent to dropping a buoy with an anchoring chain that extends from surface to bottom. The buoy is fixed at its geographical location, but the marker on the display moves to a point where present beam plane intersects the anchor chain of the buoy as ship moves or the tilt angle is changed.
  • Page 147 Deleting event marks, own ship position mark through the menu 1. Press the [MENU] key to show the menu. 2. Select OTHERS and press the [MENU] key. 3. Select ERASE MARKS and press the [MENU] key. OTHERS ERASE MARKS EVENT MARK FISH MARK OWN SHIP POS MARK : DELETE SHIP'S TRACK...

  • Page 148: Net Course Mark

    4. SLANT MODE 4.19 Net Course Mark Before shooting the net, decide the shoot timing considering tide direction, distance to the fish school and moving direction of the fish school. Use the net course mark as a guide to decide the timing. This function requires speed and heading data.

  • Page 149: Observing Net Behavior

    4.20 Observing Net Behavior With net sonde connection you can observe net behavior after the throwing of the net. Accurate depiction of net sonde position depends on proper setting of the distances between net sonde transmitters. You can set those distances on the OTHERS - INITIAL SETTING - NET SONDE SETTNG menu.

  • Page 150: Others Menu

    4. SLANT MODE 4.21 OTHERS Menu This section presents an overview of the OTHERS menu on the H-SCAN SETTING menu. 4.21.1 Displaying the OTHERS menu 1. Press the [MENU] key to open the menu. 2. Select S-SCAN SETTING and press the [MENU] key to open the H-SCAN SETTING menu.

  • Page 151: Others Menu Description

    4.21.2 OTHERS menu description COLOR: Select color arrangement to use. The default setting is COLOR 1. COLOR SETTING…: Customizes colors. 1. Select COLOR SETTING from the OTHERS menu and press the [MENU] key. The following display appears. 2. Use the trackball to select color to change and press the [MENU] key. Choose to register setting H-SCAN COLOR 1 and close menu.
  • Page 152 4. SLANT MODE COLOR RESPONSE…: Adjusts reflected echo strength versus echo color level for currently selected color response number. To adjust the curve, place the trackball at the point desired and press the [MENU] key. On the horizontal axis input level relative value is shown in the range from 0 to 100%.
  • Page 153 TVG DISTANCE: Sets the TVG effective distance for near, medium and far ranges. Setting range NEAR: 50-150 m, 10 m increments MED: 300-500 m, 20 m increments FAR: 600-1000 m, 40 m increments To adjust a TVG curve, select to change the setting. NEAR Select item with trackball and press [MENU] key to...

  • Page 154: Interpreting The Slant Display

    4. SLANT MODE 4.22 Interpreting the Slant Display 4.22.1 Bottom echoes When the tilt angle is set at 90 degrees with the sector center faced dead ahead, the pictures illustrated below will appear on the screen. The bottom echo is represented on the screen as a thick line which realistically shows the bottom contour.

  • Page 155: Fish Schools

    4. SLANT MODE 4.22.2 Fish schools A fish school appears as a mass of echoes on the screen. The color of the mass shows the density of the fishes and the size of the mass how they are distributed. In the following figures, the same fish school is observed with two different tilt angles.

  • Page 156: Sea Surface Reflections

    When the sonar is used with a narrow tilt angle, the sea surface reflections cover an extended area as illustrated below.

  • Page 157: False Echo By Sidelobe

    4.22.6 Noise and interference Interference from a sonar on another ship appears on the screen as shown in (A). (B) shows Interference from electrical equipment on board own ship. Noise from marine life appears on the display as shown in (C).
  • Page 158 4. SLANT MODE This page intentionally left blank. 4-48...

  • Page 159: Echo Sounder Mode

    Basic Operating Procedure Lower transducer. : Mid protrusion : Full protrusion Turn on power. Select appropriate echosounder mode. Adjust display brilliance. FSV-84 picture advance speed on the ES1 SETTING (or ES2 SETTING) menu. Control unit V1/S Adjust range, gain and...

  • Page 160: Typical Echo Sounder Displays

    5. ECHO SOUNDER MODE Typical Echo Sounder Displays 5.2.1 Echo sounder 1 display This display shows the picture from an echo sounder on the right-hand side of the display. Trackball mark position reference mark (See below.) * Shows horizontal display width (in meters).

  • Page 161: Echo Sounder 2 (Net Recorder Or Echo Sounder) Display

    5.2.2 Echo sounder 2 (net recorder or echo sounder) display With net recorder connection, the echo sounder 2 display can show the picture from the net recorder. (The picture from an echo sounder may also be shown.) You may show the net recorder’s downward-looking picture. Downward-looking net recorder display Indications and markers on the echo sounder 2 display NUMERIC/GRAPHIC...

  • Page 162: Echo Sounder Combination Mode (Es1 + Es2)

    5. ECHO SOUNDER MODE 5.2.3 Echo sounder combination mode (ES1 + ES2) This display shows the picture from the echo sounder and the net recorder. Also two echo sounder pictures can be displayed, or upward and downward looking display of the net recorder can be displayed. Echo sounder + net recorder display Horizontal Display NUMERIC/GRAPHIC...
  • Page 163 Upward + downward looking net recorder display (ES2 mode) The marks and indications which appear on the downward looking display are also common to the upward + downward looking display. Echo Sounder 2 display (Upward + downward looking display) 5. ECHO SOUNDER MODE NUMERIC/GRAPHIC DATA DISPLAY Upward...

  • Page 164: Selecting An Echo Sounder Mode

    5. ECHO SOUNDER MODE Selecting an Echo Sounder Mode An echo sounder mode may be selected with the [MODE] key, however no echo sounder mode is available in the default setting. To enable selection of an echo sounder mode with the [MODE] key, follow the procedure below. Enabling an echo sounder mode 1.
  • Page 165 5. Select desired ES modes (you may select as many modes as you wish) referring to the illustration below and press the [MENU] key. The check marks in the dialog box denote active modes. ES1: Echo sounder picture ES2: Net recorder picture (or echo sounder picture) Depending on the menu setting, the screen combination can be shown as follows.

  • Page 166: Selecting Display Range

    5. ECHO SOUNDER MODE Selecting Display Range The basic range and range shifting functions together give you the means to select the depth you can see on the screen. The basic range can be thought of as providing a “window” into the water column and range shifting as moving the “window”...
  • Page 167 4. Select RANGE (or RANGE UPPER NET, RANGE BELOW NET in case of net recorder on the ES2) and press the [MENU] key. QUIT CANCEL 120m 160m 240m 320m RANGE menu (ES1 SETTING menu) Range dialog box 5. Use the trackball to select range desired and press the [MENU] key. (INTERLOCK in the range dialog box for the ES2 SETTING menu uses the same range as set for ES1.

  • Page 168: Adjusting The Gain

    You may adjust the display level of the echo sounder picture as below; the gain of the echo sounder itself cannot be adjusted from the sonar. Note: Set the range and shift so they are the same as those set on the echo sounder.

  • Page 169: Picture Advance Speed

    Picture Advance Speed The picture advance speed determines how quickly the vertical scan lines run across the screen. When selecting a picture advance speed, keep in mind that a fast advance speed will expand a fish school horizontally and a slow advance speed will contract it.

  • Page 170: Measuring Depth, Distance

    5. ECHO SOUNDER MODE Measuring Depth, Distance You can measure depth and distance (picture advance set for “speed sync”) from own ship to a location with the trackball mark. Use the trackball to place the trackball mark on the location. The trackball mark shows depth on its horizontal axis and distance on its vertical axis.

  • Page 171: Comparing Fish School Concentration

    Comparing Fish School Concentration You can get an estimate of the volume of two fish schools by using the two ESTIMATE keys as below. You may use these keys in the ES1 and ES2 modes. 1. Use the trackball to set the trackball mark at the center of fish school and press the [ESTIMATE 1] or [ESTIMATE 2] key.
  • Page 172 5. ECHO SOUNDER MODE 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. The histogram display for each of those displays will be different since the calculation method is different.

  • Page 173: Es1 Setting Menu Overview

    ES1 SETTING Menu Overview Display the ES1 SETTING menu as follows. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select ES1 SETTING and press the [MENU] key. ES1 setting menu description The GAIN, RANGE, SHIFT and PICTURE ADVANCE are described at the previous pages.

  • Page 174: Es2 Setting Menu Overview

    5. ECHO SOUNDER MODE 5.10 ES2 SETTING Menu Overview Display the ES2 SETTING menu as follows. Press the [MENU] key to open the menu. Select OTHERS and press the [MENU] key. Select ES2 SETTING and press the [MENU] key. ES2 SETTING menu (net recorder connected) ES2 SETTING menu description The GAIN and PICTURE ADVANCE are described at the previous pages.

  • Page 175: History Mode

    HISTORY MODE Basic Operating Procedure Lower transducer. : Mid protrusion : Full protrusion Turn on power. Select range. Select history mode. Adjust display brilliance. FSV-84 Set tilt angle. Adjust gain. Control unit Set position. V1/S...

  • Page 176: Sample History Display

    6. HISTORY MODE Sample History Display The history display shows echo data for the echoes within the history marker, which is a 120° arc centered on the own ship position on the horizontal display. The history marker scrolls downward on the history display – the latest echoes at the top and the oldest at the bottom.

  • Page 177: How To Interpret, Set The History Display

    How to Interpret, Set the History Display 6.3.1 Interpreting the history display → 185m ↓ Horizontal range 156m Depth Color bar Own ship mark Trackball mark Distance from own ship position to bow (or stern) Distance from own ship position to port (or starboard) P: Port S: Starboard Echo data inside...

  • Page 178: Setting The History Marker

    6. HISTORY MODE 6.3.2 Setting the history marker Use the trackball to locate the trackball marker on the horizontal display and then press the [R/B AUDIO] key. The history marker moves to the trackball marker and is centered on the ship’s bow, extending 60° in both port and starboard directions.

  • Page 179: Setting The Width Of The History Marker

    6.3.3 Setting the width of the history marker You may set the width of the history marker as follows: 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select DISPLAY SETTING and press the [MENU] key. 4.

  • Page 180: Setting The Picture Advance Mode

    6. HISTORY MODE 6.3.4 Setting the picture advance mode You may choose to advance the picture at each transmission (KP SYNC) or in proportion to ship speed (SPEED SYNC). 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3.

  • Page 181: Numeric/Graphic Data Display

    NUMERIC/GRAPHIC DATA DISPLAY Full Numeric/Graphic Data Display This display provides comprehensive Numeric/graphic data and appears with the horizontal and vertical displays, at the right side of the display. HEADING SHIP COURSE SHIP SPEED LAT/LON[DGPS] ° 52.150N ° 12.150E 321m DEPTH WATER CURRENT 1.2kt 0.8kt...

  • Page 182: Abbreviated Numeric/Graphic Data Display

    7. NUMERIC/GRAPHIC DATA DISPLAY Abbreviated Numeric/Graphic Data Display This display appears at the top right-hand corner when the history, ES 1 and ES 2 displays are active. The items shown depend on whether the fish estimate mark or net shoot mark is ON or OFF as below. Heading* HEADING Course*...

  • Page 183: Numeric/Graphic Data Description

    Numeric/Graphic Data Description When a data is lost its last-entered value is shown in red. Data displays can be turned on or off through the DATA DISPLAY menu. Numeric/ Description graphic data item Heading Shows heading input from heading sensor. Course Shows ship’s course fed from Numeric/graphic...
  • Page 184 7. NUMERIC/GRAPHIC DATA DISPLAY Numeric/graphic data description (con’t. from previous page) Numeric/ Description graphic data item Water temp. Shows water temperature input from a temperature sensor. Water temp. Shows water temperature graph over time. Horizontal axis: 20 min. ° Vertical axis: Fish histo- Shows signal strength gram...

  • Page 185: Customizing The Equipment

    CUSTOMIZING THE EQUIPMENT User Menu You may program 10 often-used menu items to the user menu area in the menu. The default user menu contains pulse length, Tx power, TVG near, TVG medium, TVG far, AGC, 2 H-SCAN SETTING menu. User menu area 8.1.1 Deleting items from user menu...

  • Page 186: Menu Tree

    8. CUSTOMIZING THE EQUIPMENT 8.1.2 Programming the user menu The procedure below shows you how to add the menu item PRESENTATION MODE (for selecting presentation mode) to the user menu. Not all menu items may be programmed to the user menu. See the menu tree on page AP-1 to AP-4 for items which can be programmed.
  • Page 187 After the dialog box disappears the following message appears. USER MENU REGISTRATION SELECTED ITEM WILL BE REGISTERED IN MAIN MENU. Message for registration of user menu item Note: If 10 items are already registered to the user menu the following message appears.

  • Page 188: Function Keys (F1-F6)

    8. CUSTOMIZING THE EQUIPMENT Function Keys (F1-F6) The function keys provide one-touch display of desired menu item or entire menu. The default function key settings are as below. Not all menu items and menus may be programmed to the function keys. See the menu tree on page AP-1 to AP-4 for items which may be programmed.
  • Page 189 F2: Recalling picture Press the [F2] key to recall the picture stored in the memory. <<PLAYBACK MODE>> PRESS FUNCTION KEY AGAIN TO CANCEL. Function dialog box for recalling picture Note: If a picture is not stored, the message “Warning! The picture is not stored” appears.

  • Page 190: Programming Function Keys

    8. CUSTOMIZING THE EQUIPMENT F6: Erase ship’s track 1. Press the [F6] key. The following dialog box appears. 2. Press the [F6] key again. The oldest part of the track will be erased. Each pressing erases approximately 10% of the track. 8.2.2 Programming function keys You can change the default setting of a function key as shown below.

  • Page 191: Erasing Programs

    8.2.3 Erasing programs 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select PRESET, MEMORY CARD and press the [MENU] key. 4. Select CLEAR F-KEY SETTING and press the [MENU] key. 5.

  • Page 192: User Prog Control

    8. CUSTOMIZING THE EQUIPMENT USER PROG Control The [USER PROG] 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 default settings programs them together.) For how to program them individually see your dealer.
  • Page 193 6. Select YES and press the [MENU] key to confirm the CAUTION indicated. One of the following displays appears depending on your selection. QUIT CANCEL to P1 to P2 to P3 to P4 to P5 to P6 to P7 to P8 to P9 to P10 Horizontal, Vertical Linked...
  • Page 194 8. CUSTOMIZING THE EQUIPMENT This page intentionally left blank. 8-10...

  • Page 195: Others Menu

    OTHERS MENU This chapter provides descriptions for the OTHERS menu, which consists of 16 menus. To display the OTHERS menu, press the [MENU] key, select OTHERS and press the [MENU] key again. Note that the ES1 SETTING and ES2 SETTING menus set up the echo sounder and net recorder displays, respectively.

  • Page 196: Display Setting Menu

    9. OTHERS MENU DISPLAY SETTING menu The DISPLAY SETTING menu sets various display parameters. 9.2.1 Opening the DISPLAY SETTING menu 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select DISPLAY SETTING and press the [MENU] key. 9.2.2 DISPLAY SETTING menu description DISPLAY MODE: Selects the display modes to use.
  • Page 197 INT SENSOR: Degaussing occurs when the sensor in the monitor unit detects heading change which exceeds a certain value. This option is only operative on the FURUNO monitor unit FSV-2400. DIMMER: Adjusts backlighting of the control panel. The setting range is 1-10 and the default setting is 10 (maximum).

  • Page 198: Alarm & Audio Menu

    9. OTHERS MENU ALARM & AUDIO menu 9.3.1 Opening the ALARM & AUDIO menu The ALARM & AUDIO menu sets the fish alarm and the audio bearing mark sector. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3.

  • Page 199: Preset, Memory Card Menu

    PRESET, MEMORY CARD menu 9.4.1 Opening the PRESET, MEMORY CARD menu This menu presets various functions and provides memory card operations. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3. Select PRESET, MEMORY CARD and press the [MENU] key. 9.4.2 PRESET, MEMORY CARD menu description ASSIGN USER PROG: Programs the USER PROG control.

  • Page 200: Initial Setting Menu

    9. OTHERS MENU INITIAL SETTING menu 9.5.1 Opening the INITIAL SETTING menu This menu provides 10 sub menus which perform such tasks as mark configuration and size. 1. Press the [MENU] key to open the menu. 2. Select OTHERS and press the [MENU] key. 3.
  • Page 201 HEADING MARK: The heading mark is a dashed line which indicates the heading in all presentation modes. It extends from own ship position to the outer edge of the display and appears at zero degrees in the head-up mode. It changes the orientation depending on ship’s orientation in the north-up, course-up and true motion modes.
  • Page 202 9. OTHERS MENU DATA ON TRACK: Shows depth or water temperature on the ship’s track. The display range for temperature and depth are Water Temperature: -10°C to 40.0°C (+14°F to 105.0°F) Depth: 0 to 9999 m NET MOVEMENT PLOT: Shows predicted net movement against three current layers over time.
  • Page 203 TARGET VECTOR: This is a line extending from target lock mark which shows speed and direction of tracked fish school. See the illustration below for appearance. FISH TRACK PLOT: Traces target movement in target lock. Requires ship’s speed and course data. Target lock mark FISH HISTOGRAM: Shows signal strength distribution for the fish school(s) marked with an estimate mark on the horizontal or echo sounder display.
  • Page 204 9. OTHERS MENU TARGET VECTOR: You may display the target vector in short, normal or long lengths. Set “long” for slow moving target and “short” for faster moving target. EVENT MARK: Chooses event mark size; large or small. FISH MARK: Displays the fish mark in large or small size. OWN SHIP POS MARK: Shows the own ship position mark in large or small size.
  • Page 205 DATA DISPLAY menu This menu sets the readout format for marks on the display. Default settings are shown in the illustration below. OTHERS INITIAL SETTING DATA DISPLAY RANGE & BEARING CURSOR POSITION COURSE CURRENT DATA EVENT MARK OTHER MARKS DISTANCE FOR SHOOT : MILE WATER TEMP DATA DISPLAY menu RANGE &...
  • Page 206 9. OTHERS MENU CURRENT VEC & WIND menu This menu sets up tidal current and wind data. CURRENT DATA: Chooses how to display current data; absolute or in relation to layer 1, layer 2 or layer 3. ON OWN SHIP MARK: Selects whether to show the current mark on the own ship mark or not.
  • Page 207 NET SONDE SETTING menu This menu sets up the net sonde (option). MENU OTHERS INITIAL SETTING NET SONDE SETTING NUMBER OF XMTR XMTR DISTANCE... NET LENGTH WIRE LENGTH DEPTH DISPLAY... NET SONDE SETTNG menu NUMBER OF XMTR: Sets number of transmitter units used, from 0-10. XMTR DISTANCE: Sets the distance between transmitters.
  • Page 208 9. OTHERS MENU DEPTH DISPLAY: Selects which sonde depth data to show. Select this item and press the [MENU] key to select net sondes. The check mark shows current selection (Max. 3). NET SHOOT SETTING menu Sets up net shoot parameters. NET DIAMETER: Sets net diameter in increments of 10 meters.
  • Page 209 STABILIZATION menu This menu compensates for pitching and rolling. MENU OTHERS INITIAL SETTING STABILIZATION STABILIZATION PITCH ANGLE COR ROLL ANGLE COR SENSOR STABILIZATION menu STABILIZATION: Turns stabilization on/off. PITCH ANGLE COR: Offsets pitch angle error generated by motion sensor. ROLL ANGLE COR: Offsets roll angle error generated by motion sensor. SENSOR: Select type of motion sensor used, standard or GPS gyro.
  • Page 210 9. OTHERS MENU INITIALIZATION menu This menu restores default settings and offsets time to use local time. SAVE SHIP’S ORG: All menu settings are saved. See note below. RECALL SHIP’S ORG: Recall the menu settings which have been saved above. See note below.

  • Page 211: 10. Memory Card Operations

    10. MEMORY CARD OPERATIONS This chapter provides the information necessary for using the memory cards, which provide for storage of pictures and configurations (settings). 10.1 Storing Image, Configuration The memory card can store up to 49 files for image data (max 32 files) and configuration data (max 32 files), depending on card’s memory capacity and size of image file.
  • Page 212 10. MEMORY CARD OPERATIONS 6. Select MEMORY CARD and press the [MENU] key. Note: Never remove a memory card while the access lamp (red) is lit. File list Operation READING SAVING FORMATTING 7. Select SAVE PICT or SAVE CONFIGURATION as appropriate and press the [MENU] key to store item selected.

  • Page 213: Loading, Deleting Files

    10.2 Loading, Deleting Files This section shows you how to load and delete files. You may load files on the display to analyze echoes. When a memory card becomes full, you may wish to delete unnecessary files. 1. Insert memory card. 2.

  • Page 214: Formatting Memory Cards

    10. MEMORY CARD OPERATIONS 10.3 Formatting Memory Cards Formatting prepares the memory card for use with the system. Note that if you erase the contents of a memory card it must be re-formatted. 1. Insert a formatted memory card in the memory card slot in the processor unit. 2.

  • Page 215: Maintenance, Troubleshooting

    11. MAINTENANCE, TROUBLESHOOTING This chapter provides information necessary for keeping the equipment in good working order. 11.1 Preventive Maintenance Check the following points monthly. • Check all cables. If damaged, replace. • Check connectors at rear of each unit. If loosened, reconnect. •...

  • Page 216: Hull Unit Maintenance

    11. MAINTENANCE, TROUBLESHOOTING 11.2 Hull Unit Maintenance Follow the points mentioned below to keep the hull unit in good working order. : Equivalent greases: • SHOWA SHELL OIL: Shell Albania Grease S No.2 • EXXON MOBIL: Mobilux EP No.2 • NIPPON OIL CORPORATION: Multinox Grease No.

  • Page 217: Fuse Replacement

    11.3 Fuse Replacement The fuses in the processor unit, transceiver unit and hull unit protect them from overcurrent and equipment fault. If the power cannot be applied, first check the fuse in the processor unit and transceiver unit. If the power still cannot be turned on, have a qualified technician check the fuses in other units.

  • Page 218: Troubleshooting

    11. MAINTENANCE, TROUBLESHOOTING 11.4 Troubleshooting The table below provides common symptoms of equipment troubles and the means to rectify them. Symptom Cannot turn on the power. Bottom echo becomes irregular. Weak echo Somewhat strange color Picture contains noise. 11-4 Troubleshooting Check, Remedy •...

  • Page 219: Warning Messages

    11.5 Warning Messages The table below shows the warning messages which may appear on the display. All warning messages are accompanied by an audio alarm, which you may silence with the [R/B AUDIO] key. Message Power supply OVERVOLTAGE!! RETRACT TRANSDUCER AND TURN OFF POWER.

  • Page 220: Error Codes

    11. MAINTENANCE, TROUBLESHOOTING Error messages (con’t from previous page) Message Hull unit, transducer (con’t) WARNING!! TRANSDUCER IS KEPT AT WRONG POSITION. SET BACK TRANSDUCER POSITION TO NORMAL BY USING ↑ OR ↓ KEY. PRESS [R/B] KEY TO TURN OFF ALARM. WARNING!! TRANSDUCER IS KEPT EXTENDED.

  • Page 221: Status Messages

    11.7 Status Messages Status messages appear at the screen center to alert the operator. These are as below. Status messages and their meanings Status message TX OFF RAISE/LOWER TEST* * = Not displayed when TX is OFF. 11.8 Tests A comprehensive diagnostic facility is provided for testing the equipment. If NG (no good) or abnormal display appears in the test results for any test, contact your dealer.

  • Page 222: Board Test

    11. MAINTENANCE, TROUBLESHOOTING 11.8.2 Board test Select BOARD TEST from the TEST menu and press the [MENU] key to do this test. DCON-0 105-0788-XX.XX ROM = OK DPRAM on EEPROM = OK DUAL board RAM = OK VRAM = OK DPRAM on DPRAM1 = OK IFES board...
  • Page 223 Interpreting the board test results • Board name and its revision no. are shown in white. If a board is not inserted or inserted improperly “F” is shown as program number. When a revision no. is improper a hexadecimal from 0-E appears. When an error is found, revision no.

  • Page 224: Panel Test

    11. MAINTENANCE, TROUBLESHOOTING 11.8.3 Panel test This test checks the keys, controls and trackball of the control unit. Select PANEL TEST from the TEST menu and press the [MENU] key to do this test. PRESS MENU KEY TO QUIT TEST MODE. Key check: Control check: *: When two control units are connected, 1 is for main control unit and 2 is for...

  • Page 225: Test Pattern

    11. MAINTENANCE, TROUBLESHOOTING 11.8.4 Test pattern This test checks for proper display of colors and brilliance. Select TEST PATTERN from the TEST menu and press the [MENU] key to do this test. Use the [MODE] key to change the test pattern. PRESS MENU KEY TO QUIT TEST MODE.

  • Page 226: Rx Test (For Service Technician)

    11. MAINTENANCE, TROUBLESHOOTING 11.8.5 Rx test (For service technician) This test inputs dummy data to each board and each board outputs a test pattern (32 color). Select RX TEST from the TEST menu and press the [MENU] key to do this test. Select the board to test with the [MODE] key, in the sequence shown below.

  • Page 227: Raising The Transducer From The Hull Unit

    11.9 Raising the Transducer from the Hull Unit If the transducer cannot be raised with the switches on the control unit, because it is tangled in the net or its shaft is bent, try to raise it from the hull unit, automatically or manually, whichever works.

  • Page 228: Raising The Transducer Manually

    11. MAINTENANCE, TROUBLESHOOTING 11.9.2 Raising the transducer manually 1. Open the lid on the raise/lower control box of the hull unit and turn off the motor breaker. Confirm that the power lamp is off. (See the illustration on the previous page for location of motor breaker and power lamp.) 2.

  • Page 229: Menu Tree

    MENU TREE MENU key TX PULSE LENGTH-H TX POWER-H TVG-NEAR-H TVG-MEDIUM-H Default TVG-FAR-H user AGC-H menu 2ND AGC-H ECHO AVERAGE-H COLOR-H COLOR RESPONSE-H H-SCAN SETTING...*2, *3 V-SCAN SETTING...*2 OTHERS... *2 (See next page.) Default settings in bold italic. *1: Items which can be programmed to the user menu. See page 8-2. *2: Items which can be programmed to a function key.
  • Page 230 APPENDIX OTHERS ES1 SETTING... *2 GAIN (0-10, 5 ) *1, *2 RANGE (20-320 m, 160 m ) *1, *2 SHIFT (0-1000 m, 0 m ) *1, *2 CLUTTER (0-10, 0 ) *1, *2 SIGNAL LEVEL (0-9, 0 ) *1, *2 INT REJECT ( OFF , ON) *1, *2 PICTURE ADVANCE ( 1/1 , 1/2, 1/4, 1/8, SPEED SYNC) PICT ADVC AT SHOOT (ADV AT SHOOT, SPEED SYNC )
  • Page 231 INITIAL SETTING... *2 MARK DISPLAY... *2 HEADING MARK (OFF, ON ) RANGE RINGS (OFF, ON ) BEARING SCALE (OFF, ON ) SHIP'S TRACK (OFF, ON ) DATA ON TRACK ( OFF , WATER TEMP, DEPTH) NET MOVEMENT PLOT (OFF, ON ) FISH MARK CONNECT (OFF, ON ) TARGET VECTOR (OFF, ON ) FISH TRACK PLOT (OFF, ON )
  • Page 232 APPENDIX NET SHOOT SETTING... *2 NET DIAMETER (200-1000 m, 500 m ) TILT INTERLOCK (OFF, ON ) NET PLOT CORR-LYR1 (0-100%, 50% ) NET PLOT CORR-LYR2 (0-100%, 50% ) NET PLOT CORR-LYR3 (0-100%, 50% ) TARGET LOCK... *2 TRACKING METHOD (TARGET MARK, FISH ) *1, *2 TILT INTERLOCK (OFF, TILT, TILT&RANGE ) MARK INERLOCK (OFF, ESTIMATE MARK , EST&HISTOGRAM) TRACKING DATA (HORIZONTAL/SLANT, H&V )

  • Page 233: Specifications

    1.0 kHz PPI display on 21-inch high-resolution color CRT (for separate type), 1280(H) × 1024(V) dots 32 colors (sonar picture), 16 colors (echo sounder), 4 colors (marks) Head-up, North-up*, True-motion* and Course-up* Horizontal, Sonar, Horizontal 2, S-scan, S-scan combination, Vertical...
  • Page 234 MTW, MWV, RMA, RMC, VBW, VDR, VHW, VTG, VWT, ZDA, GNS System clock, position, speed, bearing, first layer current data, water depth, water temperature, multi-layer current data, net depth, wind SP - 2 FSV-84 FSV-8442 800/1100 mm 28 sec 15 knots...
  • Page 235 95% at 40°C IEC 60945 4 ed. No protection (IEC: IPX0) Display panel: IPX2 No protection (IEC: IPX0) Panel: IPX2 No protection (IEC: IPX0) Burstproof (IEC: IPX2) IPX8 2.5GY5/1.5 2.5GY5/1.5 Panel: N3.0, No.535 2.5G7/2 2.5G7/2 SP - 3 FSV-84 E1329S01B...

  • Page 236: Index

    INDEX Absorption coefficient horizontal mode ... 2-49 slant mode... 4-42 vertical mode ... 3-18 AGC distance, horizontal mode ... 2-50 AGC distance, slant mode ... 4-43 AGC distance, vertical mode ... 3-19 AGC, horizontal mode ... 2-18 AGC, slant mode ... 4-15 AGC, vertical mode ...
  • Page 237 INDEX Distance measurement ...5-12 Echo average horizontal mode...2-23 slant mode ...4-20 vertical mode...3-13 ERASE MARKS menu ...9-1 Error codes ...11-6 Error messages...11-5 ES1 SETTING menu...5-15 ES2 SETTING menu...5-16 ESTIMATE key...2-38, 4-32 Estimate marks echo sounder mode...5-13 horizontal mode...2-38 slant mode ...4-32 EVENT key ...2-41, 4-35 Event marks format...9-11...
  • Page 238 slant mode... 4-18 vertical mode ... 3-12 Key beep volume... 9-3 MAIN menu ... 1-14 Maintenance cleaning ... 11-1 fuse replacement ... 11-3 hull unit ... 11-2 preventive... 11-1 MARK DISPLAY menu ... 9-6 MARK SIZE menu ... 9-9 Marks echo sounder mode ...
  • Page 239 INDEX Range and bearing data...9-11 RANGE control horizontal mode...2-7 slant mode ...4-7 vertical mode...3-6 Range rings interval ...9-10 on/off ...9-7 Reverberation horizontal mode...2-23, 2-32 slant mode ...4-20, 4-27 vertical mode...3-13 Rolling angle ...9-15 Rx test ...11-12 Scale position (echo sounder mode) ...5-15 SHOOT key ...2-45, 4-39 Sidelobe suppression horizontal mode...2-24...
  • Page 240 far TVG curve, vertical mode ... 3-18 TVG distance, horizontal mode... 2-50 TVG distance, slant mode... 4-43 TVG distance, vertical mode... 3-19 Tx frequency horizontal mode ... 2-22 vertical mode ... 3-13 slant mode... 4-19 Tx interval horizontal mode ... 2-22 slant mode...

Table of Contents