Fish histogram | Furuno FSV-84 specification

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. This data appears only when an estimate mark is active. When two estimate marks are active histograms are displayed one on top of the other as below.

The horizontal axis shows signal strength in 16 colors, and the vertical axis shows fish school concentration inside the fish estimate mark. For the fish estimate mark inscribed on the horizontal display the graph shows the average movement in five scans, to increase accuracy.

Note: The histogram display is redrawn five transmissions after a fish estimate mark is erased and another mark of the same number is entered soon after.

Fish estimate	SCAN1 for H1 display
mark source	SCAN2 for H2 display

2 SCAN1

Fish estimate

mark no.

1	ES2
2	SCAN1

Blank when no estimate mark is inscribed on the horizontal display

Estimate mark 1 or estimate Both estimate marks displayed mark 2 displayed

Fish histogram

5-14

Image 172

Furuno FSV-84 manual Fish histogram

Contents

Color Scanning Sonar 00015742711 Important Notices Safety Instructions Iii Replace anticorrosion zinc plate yearly This page intentionally left blank Table of Contents Safety Instructions Table of Contents Vii Viii NUMERIC/GRAPHIC Data Display MAINTENANCE, Troubleshooting Foreword FeaturesWord to the Owner of the Furuno FSV-84 Xii System Configuration Blackbox type configurationSystem with locally supplied monitor Xiii System with Furuno monitor Standard type configurationXiv Control Description Operational OverviewControl unit Turning the Power On/Off Turning the power onTurning the power off Power & Transducer controls Lowering, Raising the Transducer Screen BrillianceLowering the transducer Raising the transducer Control Panel Dimmer Main menu defaultOthers menu Display Setting menu Dialog box for setting numeric value Mode selection menus Selecting a display modeDisplay Mode, Display Division Horizontal mode Sample display mode picturesHorizontal mode display H2 mode Horizontal 2 display Slant mode, single display Slant display singleSlant mode, combination display Slant display combination V1 + ES1 or ES2 mode V1 and V2 modesV1 and V2 displays V1 & ES1 ES2 display History mode ES1 modeHistory display ES1 display ES2 mode ES1 + ES2 modeES2 display shown downward picture ES1 + ES2 display Adjusting the Gain Menu Overview Main menu Scan Setting menu Menu Title Echo sounder picture advance speed dialog box YES This page intentionally left blank Horizontal Mode Basic Operating Procedure Horizontal mode indications and marks Horizontal modeIndications and Marks Horizontal2 mode Dialog box for setting combination Landscape Left Inset Display Range Range concept Setting the tilt angle Tilt Angle Automatic tilt range narrow with Auto Tilt key Automatic tiltAutomatic tilt range wide with Auto Tilt key Auto tilt concept Relation between bottom echo and tilt angle Case 1 Tilt angle 30 toCase 2 Tilt angle 10 to Case 3 Tilt angle 0 to Tilt angle for surface fish Tilt angle Suitable tilt angle Tilt angle and beam coverage Measuring Range and Bearing to a Target Location of trackball data Eliminating Weak Echoes Principle of TVG Numeric data entry dialog box Adjust AGC Suppressing Bottom Tail Adjust 2nd AGC Decrease pulse length Adjust Near AGC Fish echo Identifying noise source Rejecting Sonar Interference and NoiseInterference rejector Shifting Tx frequency Changing Tx intervalHow TX Interval works Setting reference bearing for frequency change Noise limiterEcho average Reverberation reduction Sidelobe suppression Adjusting Beamwidth Tracking a Fish School target lock Selecting target lock typeTarget Lock menu Target lock type dialog box Fish school tracking mode Target lock mark and target lock data Position tracking mode How position tracking mode target lock works Target Lock menu Selecting direction Detecting Fish Schools AurallyRange and audio bearing marks Selecting audio sector Alarm & Audio menuAudio sector dialog box Reverberation Automatic trainingIndications related to automatic training Presentation Mode Presentation mode descriptionPresentation modes Automatic return of own ship mark in true motion Display Setup menu How to select a presentation modePresentation mode dialog box Fish Alarm Fish alarm status dialog box How to set the fish alarm zone How to create desired alarm zone How to use offcenter Relocating Fish School for Easy Observation Comparing Fish School Concentration Estimate marks and their data Measuring Fish School Speed How to measure fish school speedEntering fish marks Deleting fish marks Fish markDeleting fish marks with the Delete Mark key Deleting fish marks through the menu Entering an event mark Event Mark, Own Ship Position MarkEvent mark data Deleting an event mark, own ship position mark Entering an own ship position markEvent mark description Deleting event marks, own ship position mark from the menu Inscribing the net course mark Net Course MarkNet course mark Observing Net Behavior Net behavior PRESET, Memory Card menu Storing, Recalling PictureStoring the picture Recalling stored picture Others Menu Displaying the Others menu Color Setting menu Others menu description Color response curve TVG setting window Bottom echoes Interpreting the Horizontal DisplayBottom echoes Fish schools Fish schools Sea surface reflections WakeSea surface reflections Wake Noise and interference Sidelobe echoes false echoesNoise and interference Vertical Mode Vertical Mode Concept Setting the vertical displayVertical mode concept Overview Typical vertical display Vertical Mode Indications and MarksVertical 1 display indications and markers Solid Line Dashed Line Vertical bearing mark, tilt markVertical scan and horizontal scan ranges Trackball mark position reference mark Auto TrainAuto train Measuring the Range Measuring range with the trackball Select V-SCAN Setting and press the Menu key TVG setting dialog box Vertical Mode Suppressing Bottom Tail Adjust 2nd AGC Rejecting Interference and Noise Noise limiter Suppressing sidelobes Dialog box Vertical Expansion Display Vertical 1 expansion display Gain Control Wide Beamwidth Others menu description Setting window Display size Application to Bonito and Tuna Fishing SearchingTracking Approaching Catching Catching Slant Mode Slant mode single display Sensor Slant mode combination display Dialog box for setting slant combination display H1 display Slant display NUMERIC/ Graphic Data Display Display Range Tilt Angle Automatic tilt Auto tilt concept Auto Training Eliminating Weak Echoes Scan Setting menu Suppressing Bottom Tail Decrease pulse length Adjust Near AGC Fish echo Rejecting Sonar Interference and Noise Changing Tx interval Noise limiter Adjusting Beamwidth Tracking a Fish School target lock Fish school tracking mode Position tracking mode Target Lock menu Detecting Fish Schools Aurally Selecting audio sector Offcenter Manual offcenter Automatic offcenter Fish Alarm How to set the fish alarm zone Numeric Measuring Fish School Speed Deleting fish marks Event Mark, Own Ship Position Mark Entering an own ship position mark Erase Marks menu Net Course Mark 21˚ Others sub menu Others menu description Scan Color TVG setting window Interpreting the Slant Display Surface fish school Bottom fish school Sea surface reflections False echo by sidelobe This page intentionally left blank Echo Sounder Mode Typical Echo Sounder Displays Echo sounder 1 displayIndications and markers on the echo sounder 1 display Trackball mark position reference mark Echo sounder 2 net recorder or echo sounder display Downward-looking net recorder display Echo sounder + net recorder display Echo sounder combination mode ES1 + ES2Echo sounder combination display Upward + downward looking net recorder display ES2 mode Echo Sounder 2 display Upward + downward looking display Enabling an echo sounder mode Selecting an Echo Sounder ModeDisplay mode dialog box System menu setting and available displays Echo sounder mode configurations and menu setting Selecting Display Range ES1 SETTING, ES2 Setting menusRange and display shift concept Dialog box for setting numeric data Range dialog box ES1 Setting and ES2 Setting menus Picture Advance Speed Picture advance speed dialog box Measuring Depth, Distance Estimating fish concentration with estimate marks Fish histogram Fish histogram ES1 Setting menu ES1 Setting Menu OverviewES1 setting menu description ES2 Setting menu net recorder connected 10 ES2 Setting Menu OverviewES2 Setting menu description History Mode History mode concept Sample History Display How to interpret the history display How to Interpret, Set the History DisplayInterpreting the history display Setting the history marker Slant range and tilt angle Setting the width of the history marker Horizontal slice width dialog box Setting the picture advance mode Full Numeric/Graphic Data Display NUMERIC/GRAPHIC Data DisplayFull Numeric/graphic data display Abbreviated Numeric/Graphic Data Display Abbreviated Numeric/graphic display Numeric/graphic data description Numeric/Graphic Data DescriptionOn next Numeric/graphic data description con’t. from previous Customizing the Equipment User MenuDeleting items from user menu Main menu user menu Programming the user menu Message for registration of user menu item Example default function programs Function Keys F1-F6Executing a function Function dialog box for storing picture Dialog box for selection of presentation mode Dialog box for adjustment of panel dimmerFunction dialog box for recalling picture Function dialog box for erasing fish marks Dialog box for erase ship track Programming function keysConfirmation for registering function key Erasing programs Function key dialog box Selecting a user program User Prog ControlProgramming the User Prog control User program options This page intentionally left blank Others Menu Erase Marks menu Display Setting menu Opening the Display Setting menuDisplay Setting menu description Display Settng menu Tilt Opening the Alarm & Audio menu Alarm & Audio menuAlarm & Audio menu description Opening the PRESET, Memory Card menu PRESET, Memory Card menuPRESET, Memory Card menu description Initial Setting menu Opening the Initial Setting menuInitial Setting menu description Mark Display menu Range rings Heading markBearing scale Net movement plot Data on ship’s trackFish marks connected with line Mark Size menu Target lock markMark Size menu Others Menu Data Display menu Data Display menu Current VEC & Wind menu Current flow direction settingsCurrent VEC & Wind menu Xmtr Distance setting window NET Sonde Setting menuNET Sonde Settng menu NET Shoot Setting menu NET Shoot Setting menuDepth Display menu Stabilization menu Stabilization menuTest menu Initialization menu Initialization menuTime offset dialog box Storing Image, Configuration Memory Card Operations10-1 Processor unit 10-2 Memory Card menu 10-3 Loading, Deleting FilesMemory Card menu, recall, delete dialog box opened Formatting Memory Cards 10-4 MAINTENANCE, Troubleshooting Preventive MaintenanceCleaning the equipment 11-1 Hull unit maintenance Hull Unit Maintenance11-2 Fuse Replacement 11-3Unit and fuse Unit Fuse rating Troubleshooting TroubleshootingSymptom Check, Remedy 11-4 Error messages Message Meaning, Remedy Power supply11-5 Transducer Error Codes Error messages con’t from previousError code 11-6 Status Messages TestsTest menu 11-7 11-8 Board testBoard test results 11-9 Interpreting the board test results Panel test 11-10Panel test Trackball check Lever check 11-11 Test patternTest patterns Rx test For service technician Noise test For service technician11-12 Rx test sequence, Rx test message Raising the Transducer from the Hull Unit Raising the transducer automatically11-13 Raise/lower control box, cover removed Raising the transducer manually 11-14 Menu Tree AP-1 AP-2 Appendix AP-3 Xmtr Distance AP-4 Tilt Interlock OFF, on Specifications of the Color Scanning Sonar FSV-84 Transceiver Unit Power Supply Index IN-1 IN-2 Indications IN-3 OFF Center key Offcentering Vertical mode Smoothing IN-4 IN-5 V1/S, V2 keys