Humminbird 585C manual Fish Sensitivity, To turn Fish ID+ on or off

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Fish ID+™

Fish ID+™ uses advanced signal processing to interpret sonar returns, and will display a Fish Symbol when very selective requirements are met. When a fish is detected, a fish icon and its depth are displayed above the return that has been classified as being a fish. Three different fish size icons represent the intensity of the sonar return, and provide an indicator of relative fish size. Single beam sonar FishFinders represent targets as orange Fish Symbols.

200 kHz Fish Symbols

When Fish ID+™ is turned off, the FishFinder shows only the raw sonar returns on the display. These returns will often result in "arches" forming on the display, indicating potential targets. Due to the transducer beam angle, the distance to a fish decreases as the fish moves into the beam, and then increases as it moves out again, creating a Fish Arch when this distance change is shown on the display. Boat speed, chart speed, and the position of the fish within the sonar beam greatly affect the shape of the arch.

Transducer Cone and Fish Arches

To turn Fish ID+™ on or off:

1.Highlight Fish ID+ on the Sonar main menu.

2.Use the LEFT or RIGHT 4-Way Cursor Control keys to turn the Fish ID+™ setting On or Off. (On, Off, Default = On)

Fish Sensitivity

Fish Sensitivity adjusts the threshold of the Fish ID+™ detection algorithms. Selecting a higher setting allows weaker returns to be displayed as fish. This is useful for identifying smaller fish species or baitfish. Selecting a lower setting displays fewer fish from weak sonar returns. This is helpful when seeking larger species of fish. Fish Sensitivity is used in conjunction with Fish ID+™. Fish ID+™ must be On for Fish Sensitivity to affect the ability of the FishFinder to identify sonar returns as fish.

To change the Fish Sensitivity setting:

1.Highlight Fish Sensitivity on the Sonar main menu.

2.Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Fish Sensitivity setting. (Low = 1, High = 10, Default = 5)

Real Time Sonar (RTS®) Window

(Sonar View Only)

RTS® Window sets the RTS® window to either Wide or Narrow, or turns it off in the Sonar View. The RTS® window always updates at the fastest rate possible and only displays returns that are within the transducer beam. (See Real Time Sonar (RTS®) Window for additional detail).

RTS® Window (Wide)

RTS® Window (Narrow)

RTS® Window (Off)

To change the RTS® Window setting:

1.Highlight RTS Window on the Sonar main menu.

2.Use the LEFT or RIGHT 4-Way Cursor Control keys to change the RTS® Window setting. (Wide, Narrow, Off, Default = Narrow)

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Contents FishFinder 585c Operations Manual Thank You Table of Contents Troubleshooting How Sonar WorksSingle Beam Sonar RTS Real Time Sonar Window 200 kHz, Orange Fish SymbolWhat’s On the Display High Sonar Intensity Return Bait BallReal Time Sonar RTS Window ViewsSonar View Understanding Sonar HistoryBig Digits View Sonar Zoom ViewView Key POWER/LIGHT KeyBottom Presentation Key FunctionsExit Key Powering Up the UnitMenu Key Way Cursor Control KeyExit Normal operation by powering your FishFinder off Start-Up Options MenuNormal Operation Exit the Simulator by powering your FishFinder off SimulatorSystem Status Highlight Sensitivity on the Sonar X-Press menu To adjust the SensitivitySonar X-Press Menu SensitivityBottom View Chart SpeedUpper Range Lower RangeHighlight Zoom Level on the Sonar X-Press menu To adjust the Zoom LevelZoom Level Sonar Menu TabFish Sensitivity To change the Fish Sensitivity settingTo change the RTS Window setting Fish ID+Surface Clutter To change the Depth Lines settingTo change the Surface Clutter setting Depth LinesNoise Filter Max DepthWater Type To change the Depth Alarm setting Alarms Menu TabDepth Alarm Fish ID AlarmSetup Menu Tab Low Battery AlarmTemp Alarm Alarm ToneUnits Distance User ModeUnits Depth Units TempTriplog Reset Restore DefaultsSelect Views Speed Calibration Select ReadoutsDepth Offset Temp OffsetTroubleshooting Display ProblemsProblem Possible Cause Humminbird Fishfinder Accessories SpecificationsFinding the Cause of Noise Contact Humminbird
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