Furuno CSH-83, CSH-84 manual True Motion Display, True motion display

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True Motion Display

The relative motion display places the own ship mark at the screen center, and echoes from fish and the seabed move on the screen relative to own ship’s movement. This means that even when the ship is dead in water, fish echoes move on the display.

In the true motion display, however, stationary objects are fixed and own ship and fish echoes move on the display in accordance with their true courses and speeds. Thus you can observe own ship and fish echo movement with respect to the seabed.

Open the data setting window and select SONR•BEAM. Set UP/ TM in the SONAR menu to TM. This function requires speed and heading inputs.

Although the true motion mode is available for use in all modes, use in the combination mode is not recommended since the own ship mark may move into the combination picture area.

Figure 7-12 True motion display

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Contents Color Scanning Sonar 00080806600 Safety Instructions Do not use the equipment for other than its intended purpose Table of Contents PORT/STARBOARD, Horizontal Slice Displays Self Tests This page is intentionally left blank Foreword FeaturesWord to CSH-83/84 Owners System Configuration Standard OptionControl Layout on Display Unit and Remote Control Box Control DescriptionMain Panel Main panel control descriptionControl Function Sub Panel ENDSub Panel 2 data setting window Process SignalAGC 2AGCUP/TM AlarmSonar SonrbeamRemote Control Box + +Operational Overview Turning the Power On/OffAdjusting Screen Brilliance, Control Panel Backlighting Lowering the TransducerSelecting a Display Mode Display mode descriptionSelecting a Display Range Setting the Tilt AngleSeabed echo and tilt angle How to discriminate fish echoes from the seabed Points to considerTilt angle for surface fish Tilt angle and sea surface reflectionsSuitable tilt angle Tilt angle and beam coverageAdjusting the Gain Measuring Range and Bearing to a TargetPage How to adjust TVG Fine Tuning the PictureEliminating Unwanted Feeble Echoes Page 2AGC data setting window SIGNAL, Signal Process AGC data setting window SIGNAL, SignalPulselength data setting window TVGTX,PL Suppressing Seabed TailRejecting Sonar Interference and Noise Data setting window TVGTX, OutputIdentifying noise source Changing Tx cycle data setting window Tvgtx CycleAdjusting Beamwidth Setting Noise limiter data setting window SignalNormal display mode Marks, Data and Display ModeMarks and Data Normal display mode w/text Echo sounder combination displayPermanently Displayed Marks and Data History displayErasable Marks and Data Mark/Data DescriptionBearing marker Mark Description Range R Auto Tilt Auto Scan Gain Brill TVG TVG DIM Page Menu Overview User Menu OperationMenu screen location and display mode User Menu Hist DSP/GRPHUser Menu Description Current VEC Save PictureTM DSP System Menu DescriptionFAR TVG Target LockBRG Readout Mark SizeMenu Description Data SET Menu Description Color CurveChange Color NET Sonde NET ShootPlan NET Plot CorrInit SET/TEST Menu Description NET REC DefaultsEcho Test Others Event KEYFunction Keys Programming the Function KeysFunction Key Fine Tuning Replaying a Function KeySaving Function Key Settings to a Memory Card Replaying Function Key Settings from a Memory CardThis page is intentionally left blank Advanced Level Operation How to find fish school centerFinding Fish School Center Tracking a Fish School target lock Tracking a fish schoolTarget lock mark appearance Choosing target lock modeErasing target lock mark Tracking target lock mark Target lock and tilt angleSetting target lock conditions System Menu Target LockDescription of target lock items Detecting Fish Schools Aurally Fish Alarm How to set the fish alarm zoneHow to relocate fish schools Relocating Fish School for Easy ObservationComparing of Fish School Concentration Estimate marks and their dataHow to measure fish speed Measuring Fish School SpeedEvent Mark 10 Event marksEntering an event mark Erasing an event markTrue Motion Display 12 True motion displayPlotting Net Location Mark 13 Net location markObserving Net Behavior 14 Net behaviorTarget Slice Display No. Display Information ApplicationsThis page is intentionally left blank PORT/STARBOARD, Horizontal Slice Displays Port/Starboard displayHorizontal slice display Horizontal slice displayMemory Card Operations Initializing Memory CardsSaving the Picture Transferring Echo Data from Internal Memory to Memory CardHow net shooting data is saved Net shooting data contentsSaving Net Shooting Data Transferring net shooting data to memory cardDeleting Memory Card Contents Replaying Saved DataTurning MARKS, Data ON/OFF Turning marks on/off through the data setting windowTurning marks on/off through the user menu 10-2 Interpreting the Display Seabed EchoesFish Schools Sea surface fishSea Surface Reflections WakeFalse Echo by Sidelobe Noise and InterferenceOvervoltage Warning Unretracted Transducer WarningHow to manually raise the transducer Self Tests Opening the Self Test MenuSingle test Self Test DescriptionContinuous test Panel test Color testGray test SIO testInterface Unit CS-120A Self Test Interface unit CS-120A, cover opened13-6 Input Data Selection Selection of Data at Interface Unit CS-120ASetting Distances Between Net Sonde Transmitters How to set net sonde transmitter distancesMaintenance Display Unit MaintenanceHull Unit Maintenance Zinc block near the transducer must be replaced yearlyMenu Tree User MenuData SET Menu Init SET/TEST Menu System Menu Previous Page Specifications SP-1Display SP-2Hull Unit SP-3SP-4 Index 11-2IN-2