Humminbird 363 manual Glossary, Sonar Terms

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Glossary

Sonar Terms:

Alarm, Depth: Depth Alarm is a user-controllable, audible alert that sounds when depth is less than or equal to the setting.

Alarm, Temperature: Temperature Alarm is a user-controllable, audible alert that sounds when the water surface temperature equals the setting.

Backlight: Backlight is a user-controllable illumination for the LCD for night and low light use.

Beam (Sonar Beam): A sonar beam is the wide, cone-shaped projection of sound waves formed as sound travels underwater. See Cone Angle.

Big Digits View: Big Digits View is a Humminbird® feature that displays the sonar graph and enlarged digital readouts for easy reading from a distance. This is a great tool when monitoring the digital depth is important - such as with higher boat speeds, or when viewing the unit from a distance. When speed input is available, the Big Digits View also shows the TripLog. See TripLog.

Bottom Black: Bottom Black is a Humminbird® feature that "fills in" the area of the display below the bottom contour. Bottom Black is preferred by some anglers because of its high contrast and easy readability, even though it can obscure bottom hardness information.

Bottom Contour: Bottom Contour is the profile of the bottom graphed to the display as the depth changes.

Bottom Hardness: Bottom Hardness is the density (or composition) of the bottom, which can often be determined by interpreting the main sonar return. Varying levels of hardness can be determined by interpreting the "thickness" of the sonar return. Hard returns appear thin and black, softer returns appear thicker and less black. It is important to note that a sonar return from a sloping bottom can have the appearance of a softer bottom.

Cavitation: Cavitation is the effect of air bubbles created as the propeller rotates and the boat moves through the water.

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Contents GPS Chartplotter Operations Manual Thank You Table of Contents Key Functions IiiSonar Menu Tab Chart Menu Tab Specifications Glossary How Sonar Works Peak to Peak measures power output at the highest points DualBeam Plustm Sonar How GPS and Cartography WorkPage What’s On the Display Bait Ball Hard Bottom Rocky Bottom83 kHz, Wide Beam Hollow Fish Symbol Adjacent to your boat, including the following itemsSonar views Zoom View Chart ViewViews Sonar ViewSonar View Sonar ViewUnderstanding Sonar History Real Time Sonar RTS WindowFreeze Frame Bottom PresentationPage Sonar Zoom View Sonar Zoom View200/83 kHz Split Sonar View 200/83 kHz Split Sonar ViewBig Digits View Big Digits ViewCircular Flasher View Bird’s Eye View Bird’s Eye ViewChart View with Active Cursor Chart ViewChart View without Active Cursor Combo View Combo ViewView Orientation Introduction to Navigation Chart View with Cursor PresentViewing Cartography Waypoints, Routes and Tracks Waypoints, Routes and TracksSave, Edit, or Delete a Waypoint Navigate to a Waypoint or Position Navigation X-PressTMmenu Add a Waypoint Target or Trolling GridSave, Edit or Delete a Route Save or Clear a Current Track Edit, Delete or Hide Saved TracksView Key POWER/LIGHT KeyKey Functions Info KeyMenu Key WAY Cursor Control KeyZoom +/- Key Mark KeyGoto Key Exit KeyTitle Screen Powering Up the UnitMenu System Press TM MenuSonar Tab Normal Mode Advanced Mode Normal Simulator System Status Start-Up Options MenuNormal Operation Simulator SimulatorSystem Status Self Test Accessory TestSystem Status Accessory Test Screen System Status Self Test ScreenGPS Diagnostic View GPS Diagnostic ViewSonar X-PressTMMenu Sonar X-PressTMMenuSonar views only Highlight Sensitivity on the Sonar X-PressTMmenu To adjust the SensitivitySensitivity Sensitivity at Low Sensitivity at MediumTo adjust the Upper Range Upper RangeHighlight Lower Range on the Sonar X-PressTMmenu To adjust the Lower RangeLower Range To adjust the Bottom View Chart SpeedTo adjust the Chart Speed Bottom ViewBottom Lock To adjust the Bottom RangeBottom Range To turn on Bottom LockHighlight Cancel Navigation on the Sonar X-PressTMmenu Cancel NavigationTo Cancel Navigation Only when NavigatingNavigation X-PressTMMenu Navigation X-PressTMMenuNavigation views only Highlight WaypointName on the Navigation X-PressTMmenu Waypoint NameTo view the Waypoint Name Submenu Waypoint Submenu contains the following menu choicesClear Current Track Cursor to WaypointSave Current Track To Save Current Route Save Current RouteSkip Next Waypoint To Skip Next WaypointTo Remove a Target Highlight Cancel Navigation on the Navigation X-PressTMmenuRemove Target Only if a Target is ActiveTo Remove a Grid Remove GridSonar Window To Set the Size of the Sonar Window in the Combo ViewMost recently-created waypoint Waypoint Name SubmenuSonar tab Press the Menu key twice to access the Main MenuSonar Menu Tab Sonar MenuHighlight Beam Select on the Sonar main menu Beam SelectTo use Beam Select Transducer Cone and Fish Arches Fish ID+TMTo turn Fish ID+TM on or off Fish ID Sensitivity To change the Fish ID Sensitivity settingTo change the RTS Window setting Highlight Fish ID Sensitivity on the Sonar main menuKHz Sensitivity To change the Zoom Width SettingZoom Width Highlight Zoom Width on the Sonar main menuDepth Lines To change the Depth Lines settingDepth Lines Surface Clutter To change the Surface Clutter settingSurface Clutter Noise Filter To change the Noise Filter settingTo change the Max Depth setting Max DepthTo change the Water Type setting Water TypeNavigation Menu Tab Navigation Menu TabNavigation tab To view the Current Track Submenu Current TrackCurrent Track allows you to view the Current Track submenu Highlight Current Track on the Navigation main menuTo view the Saved Tracks Submenu Saved TracksSaved Tracks allows you to view the Saved Tracks submenu Highlight Saved Tracks on the Navigation main menuTo view the Waypoints Submenu WaypointsWaypoints allows you to view the Waypoints submenu Highlight Waypoints on the Navigation main menuHighlight Routes on the Navigation main menu RoutesTo view the Routes Submenu Routes Submenu contains the following menu choicesGrid Rotation Chart OrientationNorth Reference Trackpoint Interval To change the Trackpoint Interval settingTo change the Track Minimum Distance setting Track Min DistanceTo change the Map Datum setting Map DatumDelete All Nav Data To change the Course Project Line settingCourse Projection Line To Delete All Navigation DataChart Menu Tab Chart MenuHighlight Chart Detail Level on the Chart main menu Chart Detail LevelTo change the Chart Detail Level setting Map BordersLat/Lon Grid To change the Map Borders settingTo change the Lat/Lon Grid setting Set Simulation PositionClear Map Offset To change the Map Offset settingSet Map Offset To Clear Map OffsetAlarms Menu Tab Alarms MenuTo change the Depth Alarm setting Depth AlarmFish ID Alarm To change the Fish ID Alarm settingTo change the Low Battery Alarm setting Low Battery AlarmTemp Alarm To change the Temp Alarm settingTo change the Off Course Alarm setting Off Course AlarmArrival Alarm To change the Arrival Alarm settingTo change the Drift Alarm setting Drift AlarmAlarm Tone To change the Alarm Tone settingSetup Menu Tab Setup Menu TabUnits Distance Units DepthUnits Temp Language User ModeUnits Speed To Reset Triplog Triplog ResetRestore Defaults To Restore DefaultsAdvanced, Sonar view only Default Sonar ViewSelect Readouts Select ReadoutsDepth Offset To change the Depth Offset settingTo change the Temp Offset setting Temp OffsetLocal Time Zone To change the Speed Calibration settingSpeed Calibration To change the Local Time ZoneDaylight Saving Time To change the Daylight Saving Time settingTo change the Position Format setting Position FormatTo change the Time Format Time FormatDate Format To change the Date FormatNmea Output To turn Nmea Output on or offSonar To turn Sonar on or offViews Menu Tab To Change the View Status of Any ViewTroubleshooting SeriesTM Defaults to Simulator with a Transducer AttachedOr faulty Display ProblemsProblem Possible Cause Boat’s engine Finding the Cause of NoiseIsolation Cavitation fromSpecifications Glossary Sonar TermsPage Image Update Page Page Receiver See Transmitter Page Page Page GPS & Navigation Terms 101 102 103 104 105 106 107 108 Contact Humminbird 109