Humminbird 161 manual

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Inverse is a method where weak returns are shown with dark pixels and strong returns with lighter pixels. This has the benefit of ensuring that weak signals will be clearly visible on the display.

Structure ID® represents weak returns as light pixels and strong returns as dark pixels. This has the benefit of ensuring that strong returns will be clearly visible on the display.

WhiteLine® highlights the strongest sonar returns in white, resulting in a distinctive outline. This has the benefit of clearly defining the bottom on the display.

Bottom Black displays all pixels below the bottom contour as black, regardless of signal strength. This has the benefit of providing a high contrast between the bottom and other sonar returns on the display. Any targets such as fish, structure and thermoclines will be shown using the Structure ID® method.

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Contents GPS Chartplotter Operations Manual Thank You Table of Contents Key Functions IiiSonar Menu Tab Chart Menu Tab Specifications Glossary Contact Humminbird 103 How Sonar Works Peak to Peak measures power output at the highest points Single Beam Sonar How GPS and Cartography WorkPage What’s On the Display Bait Ball Hard Bottom Rocky BottomStructure where fish may be hiding Adjacent to your boat, including the following itemsSonar views Zoom View Chart View Big Digits ViewViews Sonar ViewSonar View Understanding Sonar History Real Time Sonar RTS WindowFreeze Frame Bottom PresentationPage Sonar Zoom View Sonar Zoom ViewBig Digits View Circular Flasher ViewBird’s Eye View Bird’s Eye ViewChart View Chart View without Active CursorCombo View View OrientationChart View with Cursor Present Viewing CartographyIntroduction to Navigation 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 KeyPowering Up the Unit Menu SystemSonar Tab Normal Mode 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 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 views onlyHighlight WaypointName on the Navigation X-PressTMmenu Waypoint NameTo view the Waypoint Name Submenu Waypoint Submenu contains the following menu choicesSave Current Track Chart or Combo view onlyCursor to Waypoint To move cursor to a saved waypointClear Current Track Save Current RouteSkip Next Waypoint To 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 Press the Menu key twice to access the Main Menu Sonar Menu TabSonar tab Fish ID+TM To turn Fish ID+ on or offFish ID Sensitivity To change the Fish ID Sensitivity settingTo change the RTS Window setting Highlight Fish ID Sensitivity on the Sonar main menuZoom Width To change the Zoom Width SettingTo change the Depth Lines setting Depth LinesTo change the Surface Clutter setting Surface ClutterNoise Filter To change the Noise Filter settingTo change the Max Depth setting Max DepthTo change the Water Type setting Water TypeNavigation Menu Tab Navigation tabTo 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 menuHighlight Waypoints on the Navigation main menu WaypointsTo view the Waypoints Submenu Waypoints Submenu contains the following menu choicesHighlight Routes on the Navigation main menu RoutesTo view the Routes Submenu Routes Submenu contains the following menu choicesChart Orientation North ReferenceGrid Rotation Trackpoint Interval To change the Trackpoint Interval settingTo change the Track Minimum Distance setting Track Min DistanceMap Datum Course Projection LineDelete All Nav Data Chart Menu Tab Chart Detail Level To change the Chart Detail Level settingHighlight Chart Detail Level on the Chart main menu Map Borders To change the Map Borders settingTo change the Lat/Lon Grid setting Lat/Lon GridSet Simulation Position To set the Simulation PositionClear Map Offset To change the Map Offset settingSet Map Offset To Clear Map OffsetAlarms Menu Tab To 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 Units Depth Units TempUnits Distance User Mode Units SpeedLanguage To Reset Triplog Triplog ResetRestore Defaults To Restore DefaultsSelect Readouts Advanced, Sonar view onlyTo change the Depth Offset setting Depth OffsetTo Select Readouts Temp Offset To change the Temp Offset settingTo change the Speed Calibration setting Speed CalibrationDaylight Saving Time To change the Daylight Saving Time settingLocal Time Zone To change the Local Time ZoneTime Format To change the Position Format settingPosition Format To change the Time FormatDate Format Nmea OutputTo change the Date Format Sonar To turn Nmea Output on or offTo turn Sonar on or off To Change the View Status of Any View Views Menu TabCombo View Highlight the View main menu tabTroubleshooting SeriesTM Defaults to Simulator with a Transducer AttachedDisplay Problems Problem Possible CauseOr faulty Boat’s engine Finding the Cause of NoiseIsolation Cavitation fromSpecifications Glossary Sonar TermsPage Page Page Page Receiver See Transmitter Page Page Page GPS & Navigation Terms Page Page 100 101 102 103 104 Contact Humminbird 105