Humminbird 383c manual KHz Sensitivity, To set the 83 kHz Sensitivity

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83 kHz Sensitivity

(Advanced)

83 kHz Sensitivity changes the sensitivity of the 83 kHz beam. Increasing the 83 kHz Sensitivity will display additional weak returns and decreasing the 83 kHz Sensitivity will display fewer weak returns. The 83 kHz Sensitivity menu choice is only available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

NOTE: 83 kHz Sensitivity is particularly useful for adjusting the sensitivity of the 83 kHz sonar returns in the 200/83 kHz Split Sonar View. The 83 kHz sensitivity can be adjusted without affecting the sensitivity of the 200 kHz returns shown in the 200 kHz sonar window.

To set the 83 kHz Sensitivity:

1.Make sure you are in Advanced User Mode, then highlight 83 kHz Sensitivity on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to set the 83 kHz Sensitivity. (-10 to +10, Default = 0)

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Contents 383c GPS Chartplotter Operations Manual Thank You Table of Contents Sonar X-Press Menu Sonar views only IiiTable of Contents Chart Menu Tab Specifications Glossary Contact Humminbird 106 How Sonar Works Peak to Peak measures power output at the highest points DualBeam Plus Sonar How GPS and Cartography WorkPage What’s On the Display RTS Real Time Sonar Window Low Sonar Intensity Return Views Sonar viewsSonar View Understanding Sonar History Real Time Sonar RTS WindowFreeze Frame Bottom PresentationPage Sonar Zoom View Sonar Zoom View200/83 kHz Split Sonar View Big Digits View Circular Flasher ViewBird’s Eye View Bird’s Eye ViewChart View Chart View without Active CursorCombo View View OrientationViewing Cartography Introduction to NavigationCursor Waypoints, Routes and Tracks Waypoints, Routes and TracksSave, Edit, or Delete a Waypoint Navigate to a Waypoint or Position Navigation X-Press menu Add a Waypoint Target or Trolling GridSave, Edit or Delete a Route Save or Clear a Current Track Edit, Delete or Hide Saved TracksPOWER/LIGHT Key Key FunctionsView Key Info KeyMenu Key WAY Cursor Control KeyMark Key Goto KeyZoom +/- Key Exit KeyPowering Up the Unit Menu SystemMain Menu System Normal User Mode Sonar Tab, Normal Mode Sonar Tab, Advanced Mode Start-Up Options Menu Normal OperationNormal Simulator System Status Simulator System StatusAccessory Test Self TestGPS Diagnostic View GPS Diagnostic ViewSonar X-PressTMMenu Sonar views onlyTo adjust the Sensitivity SensitivityHighlight Sensitivity on the Sonar X-PressTMmenu To adjust the Upper Range Upper RangeTo adjust the Lower Range Lower RangeHighlight Lower Range on the Sonar X-PressTMmenu Chart Speed To adjust the Chart SpeedHighlight Chart Speed on the Sonar X-Press menu To adjust the Bottom RangeCancel Navigation To Cancel NavigationHighlight Cancel Navigation on the Sonar X-PressTM menu Bottom LockNavigation X-PressTMMenu Navigation views onlyWaypoint Name To view the Waypoint Name SubmenuHighlight WaypointName on the Navigation X-PressTMmenu Waypoint Submenu contains the following menu choicesCursor to Waypoint Save Current TrackClear Current Track Save Current Route Skip Next WaypointTo Save Current Route To Skip Next WaypointHighlight Cancel Navigation on the Navigation X-PressTMmenu Remove TargetTo Remove a Target Remove Grid Sonar WindowTo Remove a Grid To Set the Size of the Sonar Window in the Combo ViewMost recently-created waypoint Press the Menu key twice to access the Main Menu Sonar Menu TabSonar tab Beam Select To use Beam SelectHighlight Beam Select on the Sonar main menu Fish ID+TM To turn Fish ID+ on or offTo change the Fish ID Sensitivity setting To change the RTS Window settingFish ID Sensitivity Highlight Fish ID Sensitivity on the Sonar main menuTo adjust the Bottom View To change the Zoom Width SettingBottom View Zoom WidthKHz Sensitivity To set the 83 kHz SensitivityTo change the Depth Lines setting Depth LinesTo change the Surface Clutter setting Surface ClutterTo change the Noise Filter setting To change the Max Depth settingNoise Filter Max DepthTo change the Water Type setting Water TypeNavigation Menu Tab Navigation tabCurrent Track Current Track allows you to view the Current Track submenuTo view the Current Track Submenu Highlight Current Track on the Navigation main menuSaved Tracks Saved Tracks allows you to view the Saved Tracks submenuTo view the Saved Tracks Submenu Highlight Saved Tracks on the Navigation main menuWaypoints To view the Waypoints SubmenuHighlight Waypoints on the Navigation main menu Waypoints Submenu contains the following menu choicesRoutes To view the Routes SubmenuHighlight Routes on the Navigation main menu Routes Submenu contains the following menu choicesChart Orientation North ReferenceGrid Rotation To change the Trackpoint Interval setting To change the Track Minimum Distance settingTrackpoint Interval Track Min DistanceMap Datum Course Projection LineDelete All Nav Data Chart Menu Tab Chart Detail Level To change the Chart Detail Level settingTo change the Map Borders setting Map BordersTo change the Lat/Lon Grid setting Highlight Lat/Lon Grid on the Chart main menuLat/Lon Grid Set Simulation PositionTo change the Map Offset setting Set Map OffsetClear Map Offset To Clear Map OffsetAlarms Menu Tab Depth Alarm Fish ID AlarmTo change the Depth Alarm setting To change the Fish ID Alarm settingLow Battery Alarm Temp AlarmTo change the Low Battery Alarm setting To change the Temp Alarm settingOff Course Alarm Arrival AlarmTo change the Off Course Alarm setting To change the Arrival Alarm settingDrift Alarm Alarm ToneTo change the Drift Alarm setting To change the Alarm Tone settingSetup Menu Tab Units Depth Units TempUnits Distance User Mode Units SpeedLanguage Triplog Reset Restore DefaultsTo Reset Triplog To Restore DefaultsCourse Temperature Select ReadoutsTime + Date Position Triplog Speed VoltageTo change the Depth Offset setting Depth OffsetTo Select Readouts To change the Temp Offset setting To change the Speed Calibration settingTemp Offset Speed CalibrationTo change the Daylight Saving Time setting Local Time ZoneDaylight Saving Time To change the Local Time ZoneTo change the Position Format setting Position FormatTime Format To change the Time FormatDate Format To change the Date FormatNmea Output SonarTo turn Nmea Output on or off To turn Sonar on or offViews Menu Tab To Change the View Status of Any ViewHighlight the View main menu tab Troubleshooting Series Defaults to Simulator with a Transducer AttachedDisplay Problems Problem Possible Cause Control head losesPower at high speeds VoltsFinding the Cause of Noise IsolationBoat’s engine PropellerSpecifications Glossary Sonar TermsPage Page Page Page Receiver See Transmitter Page Page Page GPS & Navigation Terms 100101 Course Over Ground 102103 104 105 106 107 108 109 110 Contact Humminbird 111