Humminbird 947C manual Beam Sensitivity, 3D Bottom Zoom, 3D Lower Range

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6-BEAM SENSITIVITY

(6-Beam Sonar View only)

6-Beam Sensitivity controls how much detail is shown on the display, and is only available when you are in the 6-Beam Sonar View. Increasing the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; the display may become too cluttered, however. When operating in very clear water or greater depths, increased sensitivity shows weaker returns that may be of interest. Decreasing the sensitivity eliminates the clutter from the display that is sometimes present in murky or muddy water. If Sensitivity is adjusted too low, the display may not show many sonar returns that could be fish.

To adjust the 6-Beam Sensitivity:

1.Highlight 6-Beam Sensitivity on the X-Press™ menu while in the 6-Beam Sonar View.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to increase or decrease the 6-Beam Sensitivity setting. (Low = 1, High = 20, Default = 10)

3D BOTTOM ZOOM

3D Bottom Zoom provides a magnified image of the bottom, and is only available on the 3D Sonar X-Press™ Menu in the 3D Sonar View and the 3D/2D Sonar Combo View. Use 3D Bottom Zoom to increase the detail of the bottom on the display.

To adjust the 3D Bottom Zoom:

1.Highlight 3D Bottom Zoom on the 3D Sonar X-Press™ Menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the 3D Bottom Zoom setting. (Off, 1.5x, 2x, 2.5x, 3x, Default = Off)

3D LOWER RANGE

3D Lower Range sets the deepest depth range that will be displayed, and is only available on the 3D Sonar X-Press™ Menu when you are in the 3D Sonar, 3D/2D Sonar Combo, or the 6-Beam Sonar View. Automatic is the default setting. When in automatic mode, the lower range will be adjusted by the unit to follow the bottom. Selecting a specific setting locks the depth range into Manual mode.

For example, if you are fishing in 60 feet of water but are only interested in the first 30 feet (surface to a depth of 30 feet) you should set the Lower Depth Range limit to 30. The display will show the 0 to 30 foot range, allowing you to see a more detailed view than you would see if the display went all the way to the bottom.

To adjust the 3D Lower Range:

1.Highlight 3D Lower Range on the 3D Sonar X-Press™ Menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to increase or decrease the Lower Range setting. (AUTO, 10 to 240 feet, 3 to 75 meters [International Models Only], Default = AUTO)

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Contents 531374-1A 947 Man.qxd 2/15/2005 752 PM Thank You Table of Contents Menu System Start-Up Options Menu 2D Sonar X-Press Menu3D Sonar X-Press Menu Navigation X-Press MenuChart Menu Tab Alarms Menu TabSetup Menu Tab Views Menu Tab Accessories Menu Tab TroubleshootingSeries Introduction HOW the 900 Series Works3D Sonar 2D SonarSD Slot GPS and CartographyMULTI-MEDIA Card MMC SD Slot Accessory BUS Installation OverviewAccessory Bus 900 Series has a wide variety of configurationsGimbal Mounting the Control Head Control Head InstallationBasic installation tasks that you must perform include Mounting Screws Washer Gimbal Mounting Bracket Cables Routed Near Mounting Bracket Plug Cable Connector Assembly to Back of Control Head Screws providedIN-DASH Mounting the Control Head Plug Cable Connector Assembly to Back of Control Head Transducer Installation Connecting the Control Head Power Cable to the BoatStepped Hull Transom Transducer InstallationTo determine transducer mounting location To mount the transducer bracket to the boat To attach the pivot to the transducerBut do not completely tighten Attaching the BracketNormal Cavitation To mount the transducer pivot assembly to the bracketTo adjust the running position of the transducer To route the transom transducer cable ReassembleFully tightened Routing the CableDetermine the transducer mounting location Inside the Hull Transducer InstallationTrial installation Permanently mount the transducer Route the cableMake sure the position of the transducer is marked Transducer Mounted Inside the HullTest and Finish the Transducer Installation Trolling Motor Transducer InstallationGPS Receiver Installation If you have… Then useHand-tighten only Follow these steps to stem mount the GPS receiverTo the cable as shown Access Under Mounting LocationAccess Under Mounting Location No Access Under Mounting Location Finish Routing the Cable and Check GPS Receiver OperationInstall the temperature probe accessory Routing the cable to the control headTesting the System Installation To test the installationPowering UP the Control Head Series 947c 3D Combo Title ScreenWHAT’S on the 3D Sonar Display TriplogWHAT’S on the 2D Sonar Display Bait Ball RTS Real Time Sonar WindowReal Time Sonar RTS Window Bottom PresentationPOWER/LIGHT KEY KEY FunctionsView KEY Menu KEYView Preset Keys WAY Cursor Control KEYExit KEY Info KEYViews available on your 900 Series are MARK/GOTO KEYViews 3D/2D Combo View Views and Readouts3D/2D Combo View 2D Sonar View 2D Sonar View2D Zoom View 2D Zoom ViewBeam Sonar View BIRD’S EYE ViewBeam Sonar View Bird’s Eye ViewCHART/BIRD’S EYE Combo View Chart ViewChart/Bird’s Eye Combo View with Active Cursor Chart View with Active CursorChart/2D Combo View CHART/3D Combo ViewCHART/2D Combo View Viewing Cartography Chart OrientationChart View with Cursor Present Waypoints, Routes and Tracks WAYPOINTS, Routes and TracksNavigation SAVE, EDIT, or Delete a Waypoint ADD a Waypoint Target or Trolling Grid Chart View with TargetNavigate to a Waypoint or Position Chart View with Grid SAVE, Edit or Delete a RouteMenu System Save or Clear a Current TrackEDIT, Delete or Hide Saved Tracks Sonar Tab, Normal Mode Sonar Tab, Advanced ModeExit Normal operation by powering your 900 Series off START-UP Options MenuNormal Operation Start-Up Options MenuSelf Test Accessory Test GPS Diagnostic View Exit the Simulator by powering your 900 Series offSimulator System StatusAccessory Test GPS Diagnostic ViewAccessory Test Screen GPS Diagnostic ViewTo Adjust Split Screen Position 2D Sonar X-PRESS MenuActive Side Split PositionTo adjust the Sensitivity To adjust the Upper RangeSensitivity Upper RangeBottom Lock Chart SpeedLower Range To adjust the Bottom Range Bottom Range2D/3D Priority To change the 2D/3D Priority3D Sonar X-Press Menu 3D Sonar X-PRESS MenuHighlight Split Position on the 3D Sonar X-Press Menu 3D Lower Range Beam Sensitivity3D Bottom Zoom Reset 3D View To adjust the 3D HistoryTo Reset 3D View 3D HistoryHighlight Split Position on the Navigation X-Press Menu Navigation X-Press MenuSave Current Track Clear Current TrackSave Current Route Skip Next WaypointRemove Grid Cancel NavigationRemove Target Sonar Menu TAB 2D Sonar Colors3D Bottom Style 3D Frame Style2D Beam Select Fish ID+To change Beam Select To set Fish ID+To change the Fish ID Sensitivity setting To change the RTS Window settingTo change the Fish ID 3D Reference setting Fish ID SensitivityBottom View Zoom WidthKHZ Sensitivity Depth LinesTo change the Noise Filter setting To change the Max Depth settingSurface Clutter Noise FilterColor BAR Temperature GraphWater Type Waypoints Navigation Menu TABTracks To change the Chart Orientation setting To change the North Reference settingRoutes North ReferenceTrolling Grid Rotation Trackpoint IntervalTrack MIN Distance MAP DatumChart Menu TAB Export ALL NAV DataDelete ALL NAV Data To Export All Navigation DataChart Detail Level MAP BordersLAT/LON Grid Spot SoundingsClear MAP Offset Shaded DepthSET MAP Offset Alarms Menu TAB Depth AlarmFish ID Alarm To change the Depth Alarm settingOFF Course Alarm LOW Battery AlarmTemp Alarm Alarm Tone Arrival AlarmDrift Alarm Setup Menu TAB To change the Units Depth settingTo change the Units Temp setting Units DepthUser Mode Units DistanceUnits Speed LanguageSelect Readouts Triplog ResetRestore Defaults Default Sonar View Customized Sonar View To Select ReadoutsDepth Offset Temp OffsetLocal Time Zone Daylight Saving TimePosition Format Time FormatDate Format Nmea OutputSonar Views Menu TABTo turn Nmea Output on or off To turn Sonar on or offSeries Doesn’t Power Up Accessories Menu TABTroubleshooting Series Defaults to Simulator with a Transducer Attached Display Problems Control head loses power at high speedsFinding the Cause of Noise Other electronic devicesNoise re-appears Boat’s engineYear Limited Warranty Humminbird Service PolicyFor IN-WARRANTY service, complete the following steps Returning Your Unit for ServiceSeries Accessories Specifications Operating FrequencyAppendix a Contact Humminbird
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