Page 2
Your Humminbird® is designed for trouble-free use in even the harshest marine environment. In the unlikely event that your Humminbird® does require repairs, we offer an exclusive Service Policy - free of charge during the first year after purchase, and available at a reasonable rate after the one-year period.
531374-1_A - 947 Man.qxd 2/15/2005 7:52 PM TABLE OF CONTENTS 900 Series™ Introduction How the 900 Series™ Works ... 1 3D Sonar ... 1 2D Sonar ... 1 GPS and Cartography ... 2 Multi-Media Card (MMC)/SD Slot ... 2 Accessory Bus ... 3 Installation Overview Control Head Installation Gimbal Mounting the Control Head ...
Page 4
531374-1_A - 947 Man.qxd 2/15/2005 7:52 PM TABLE OF CONTENTS The Menu System Start-Up Options Menu Normal Operation ... 43 Simulator ... 44 System Status... 44 Self Test ... 44 Accessory Test... 45 GPS Diagnostic View... 45 2D Sonar X-Press™ Menu Active Side...
Page 5
US and Canada by our authorized International Distributors. To obtain a list of authorized International Distributors, please visit our website at www.humminbird.com or contact our Customer Resource Center at 1-800-633-1468 to locate the distributor nearest you.
900 SERIES™ INTRODUCTION Your 900 Series™ Ultra Wide Screen Fishing System comes in the following configuration: • Humminbird® 947c 3D Combo: Ultra Wide Screen Fishing System with Chartplotter (Maps) and Dual Frequency 455 kHz and 83 kHz Transducer, GPS Receiver included.
MMC/SD card. You can obtain software updates from the www.humminbird.com website. Use the illustration to locate the position of the MMC and SD slot cover, remove the cover, and then insert an MMC and/or an SD card into one or both slots - either slot can accept either an MMC or an SD card.
Please read all instructions that are relevant for your configuration before beginning the installation process. Your 947c 3D Combo comes with a GPS Receiver and a Temp Probe Accessory that should be installed along with the transducer and control head.
Page 9 GIMBAL MOUNTING THE CONTROL HEAD If you are gimbal mounting the Humminbird® 900 Series™, you can pre-assemble the unit in order to plan the best mounting location. Washer Gimbal Knob...
Page 10
Make the required installations and then run the cables to your control head mounting location. Do not cut any cabling (except the power cable). If your cables are too short, extensions are available from your local dealer or online from www.humminbird.com. Page 10...
Page 11
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 5. Set the gimbal bracket aside and drill the four mounting screw holes using a 5/32" (4.0 mm) drill bit. 6a. If the cables must pass through a hole directly beneath the mounting bracket, mark and drill an additional 1"...
Page 12
NOTE: You may wish to dress the cabling with nylon wire ties in order to hold the cables Cable Collector Cover together and create a cleaner assembly. Tab on Insert Slot on Cover The Humminbird® 900 Series™ control head is now ready for operation. Plug Cable Connector Assembly to Back of Control Head...
NOTE: If a cable is too short for your application, extension cables are available. Call Humminbird® Customer Resource Center at 1-800-633-1468 for more information. Parts and tools specific to In-dash mounting are: • In-dash mount bracket and threaded rods •...
Page 14
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 6. Insert cable connectors into the proper recesses on the cable collector insert. The cable connectors are keyed to prevent reverse installation, so be careful not to force the connectors into the wrong slots. If you don’t have a cable for every hole in the insert, install the blank plugs to protect the unit from the weather.
NEW and UNASSEMBLED, with mounting hardware included, for a transducer appropriate for your application - often at very little or no charge, depending on the transducer. Call the Humminbird® Customer Resource Center (1-800-633-1468) for details and pricing, or visit www.humminbird.com, Product Support/Transducer Exchange for more information.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM TRANSOM TRANSDUCER INSTALLATION If you will be installing a transom mounted transducer, use the procedures in this section. There are several procedures you will have to perform in order to install a transom-mounted transducer. They are: •...
Page 17
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM To mount the transducer bracket to the boat: 1. Remove the transducer mounting template from this manual. (See Appendix A, Transducer Mounting Template: SHS 7W). 2. Hold the template on the transom of the boat in the location where the transducer will be installed.
Page 18
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM To mount the transducer pivot assembly to the bracket: 1. Slide the assembled transducer into the metal bracket from the bottom, aligning the large hole at the top of the bracket with the hole in the pivot. 2.
Page 19
50' (15 m). For assistance, contact the Customer Resource Center at www.humminbird.com or call 1-800-633-1468 for more information. NOTE:Since the transducer may need to pivot up to 90 degrees in the bracket if it strikes an object, make sure there is sufficient cable slack to accommodate this motion.
If you choose to mount your transducer inside the hull of your boat, perform the procedures in this section. In-hull mounting generally produces good results in single thickness fiberglass-hulled boats. Humminbird® cannot guarantee depth performance when transmitting and receiving through the hull of the boat, since some signal loss occurs.
Page 21
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 4. Fill the hull with enough water to submerge the Transducer Mounted Inside the Hull transducer body. Use a sand-filled bag or other heavy object to hold the transducer in position. The transducer cannot transmit through air, and the water purges any air from between the transducer and the hull, and fills any voids in the coarse fiberglass surface.
• Two control heads with one transducer • Two transducers with one control head. NOTE: Call the Humminbird® Customer Resource Center (1-800-633-1468) for details and pricing, or visit www.humminbird.com for more information. Page 22 TEST AND FINISH THE TRANSDUCER INSTALLATION...
(antenna pole). NOTE: AS-EC10 10' extension cables are available from Humminbird® if your planned routing exceeds 20', (6 m). Maximum cable length, including extensions, should not exceed 50' (16 m).
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 2. Screw on the receiver base to the stem first, making sure that the stem pipe does not protrude from the receiver base. This adds protection to the cable when pulling it through the pipe stem.
1. Determine the best location, then test route the cable from the mounting location to the control head. NOTE: AS-EC10 10' extension cables are available from Humminbird® if your planned routing exceeds 20', (6 m). Maximum cable length, including extensions, should not exceed 50' (16 m).
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM TEMPERATURE PROBE ACCESSORY INSTALLATION The Temperature Probe incorporates a temperature sensitive probe in a high- impact plastic housing. The module is intended for installation on the transom, and will work well on almost any boat. In addition to the parts supplied, you will need a hand drill with various bits, marine-grade silicone sealant, and a...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 3. Route the cable to the Control Head, and insert the connector into the appropriate slot. Use the connector designated for accessories on the control head. 4. If the connections are correct, the Control Head will begin displaying water temperature information immediately (assuming that the control head is powered on).
900 Series™ begins operation. Your 900 series™ will begin Normal or Simulator operation, depending on the presence or absence of a transducer. 4-WAY Cursor Control Key MENU Key VIEW Key EXIT Key VIEW PRESET Keys 900 Series™ 947c 3D Combo Title Screen...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM WHAT’S ON THE 3D SONAR DISPLAY The 900 Series™ can display a variety of useful 3D information about the area under and adjacent to your boat, including the following items: Depth - water depth; can be set to alarm when the water becomes too shallow. Timer - Elapsed time (with Speed input or GPS Receiver).
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM WHAT’S ON THE 2D SONAR DISPLAY The 900 Series™ can display a variety of useful 2D information about the area under and adjacent to your boat, including the following items: Depth - water depth; can be set to alarm when the water becomes too shallow. Timer - Elapsed time with Speed accessory or GPS Receiver.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM REAL TIME SONAR (RTS®) WINDOW A Real Time Sonar (RTS®) Window appears on the right side of the display in the Sonar View only. The RTS® Window always updates at the fastest rate possible for depth conditions and shows only the returns from the bottom, structure and fish that are within the transducer beam.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM KEY FUNCTIONS Your 900 series™ user interface consists of a set of easy-to-use keys that work with various on-screen views and menus to give you flexibility and control over your fishing experience. Your control head will have the keys: •...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM item quickly: Alarms, Sonar, Navigation, Chart, Setup, Views, and Accessories tabs are part of your tabbed Main Menu System. Use the LEFT or RIGHT 4-WAY Cursor Control key to select a tab; then use the DOWN or UP key to select the menu item, and the LEFT or RIGHT key to alter a menu setting.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM If the cursor is not active, the following menu will be displayed. Use the 4-WAY Cursor Control key to select Nearest Port, Nearest Tide Station or Nearest Current Station, then use the RIGHT Cursor key to display the requested information.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM VIEWS AND READOUTS All views have an Information Bar on the left side of the screen, consisting of readouts that are stacked vertically, and that change from view to view. You can customize the information displayed in individual readouts on many views, including suppressing a particular readout so that nothing is displayed;...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 2D SONAR VIEW 2D Sonar View is a 2-dimensional view that presents a historical log of 2D sonar returns. When in 2D Sonar View, your unit operates like a typical depthsounder. The most recent sonar returns are charted on the right side of the window; as new information is received, the older information is moved across the display to the left.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 2D ZOOM VIEW 2D Zoom View increases the displayed resolution to separate sonar returns that are very close together, such as those caused by fish suspended close to the bottom or within structure. In 2D Zoom View, the display is split to show the full range view on the right and the zoomed view on the left.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM 6-BEAM SONAR VIEW 6-Beam Sonar View displays information from each of the six 455 kHz beams in a traditional 2D representation. This view displays the raw sonar returns from each of the beams that are used to create the 3-dimensional wire frame representation of the bottom in the 3D Sonar View.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM CHART/BIRD’S EYE COMBO VIEW Chart/Bird’s Eye Combo View shows both the Chart and Bird’s Eye views in a combination split screen. You can perform any of the functions for either of these views, but only when the view you want to control is selected as the active side (see Sonar X-Press™...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM CHART/3D COMBO VIEW Chart/3D Combo View shows both the Chart and 3D Sonar views in a combination split screen. You can perform any of the functions for either of these views, but only when the view you want to control is selected as the active side (see 3D Sonar X-Press™...
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM CHART ORIENTATION All the chart views allow you to choose the orientation of the chart. When North-Up orientation is selected, True North is shown at the top of the display. In other words, objects located to the north of the boat are drawn above the boat.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Nearest Port: The position and services information for the nearest port to your present position will be displayed. Press the EXIT key to remove the information box and the Bullseye Cursor will be centered over the port position. The Cursor Information Boxes will indicate the distance and bearing to the port from your present position.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Routes link two or more waypoints together to create a path for navigation, and are used in trip planning. You can link individual waypoints together by using the GOTO key. A route represents your intended navigation and shows the shortest path from each waypoint to the next.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM NAVIGATE TO A WAYPOINT OR POSITION Navigate to the cursor position: From any Chart or Combo view, use the Cursor key to select a position or waypoint to which you want to navigate. Press the GOTO key. Navigation will begin immediately.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Add or Remove a Trolling Grid: From the Waypoints submenu (accessed from the Navigation main menu), select Grid and press the RIGHT Cursor key to display a list of waypoints. Select the waypoint to which you want to add the grid. The trolling grid will appear on all of the navigation views, and can be used as a guide when trolling around a waypoint.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM SAVE OR CLEAR A CURRENT TRACK Save the current track: From the Navigation X-Press™ Menu, select Save Current Track and press the RIGHT Cursor key. The track will remain on the display, but will change from black to gray.
Page 47
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Press the MENU key twice for the Main Menu, then use the 4-WAY Cursor LEFT or RIGHT key to select a tab, and use the DOWN or UP key to select a specific menu item under that tab, then use the LEFT or RIGHT keys again to change a menu setting.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM START-UP OPTIONS MENU Press the MENU key when the Title screen is displayed to access the Start-Up Options menu. Start-Up Options Menu Use the UP or DOWN 4-WAY Cursor keys to position the cursor, then the RIGHT Cursor key to select one of the following choices.
531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM SIMULATOR Use the Simulator to learn how to use your 900 Series™ before taking your boat on the water. The Simulator is a very powerful tool that simulates on-the-water operation, providing a randomly-updated display. We recommend going through this manual while using the Simulator, since all of the menus function and affect the display the way they actually do when in Normal operation.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM ACCESSORY TEST Accessory Test lists the accessories connected to the system. Accessory Test Screen GPS DIAGNOSTIC VIEW GPS Diagnostic View, which is only available when a GPS Receiver is attached to you 900 Series, shows a sky chart and numerical data from the GPS receiver. The sky chart shows the location of each visible GPS satellite with its satellite number and a signal strength bar.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 2D SONAR X-PRESS™ MENU (2D Sonar Views only) The 2D Sonar X-Press™ Menu provides access to the settings most frequently used. Press the MENU key once while in any of the 2D Sonar Views to access the 2D Sonar X-Press™...
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SENSITIVITY Sensitivity controls how much detail is shown on the display. Increasing the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; however, the display may become too cluttered. When operating in very clear water or greater depths, increased sensitivity shows weaker returns that may be of interest.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM LOWER RANGE Lower Range sets the deepest depth range that will be displayed. 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.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM BOTTOM RANGE (2D Zoom View only, when Bottom Lock is On) Bottom Range allows you to control how much of the water column, measured up from the bottom, is shown in the left pane of the 2D Zoom View. Choose a small value to see low-lying bottom structure or details of the bottom return.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 3D SONAR X-PRESS™ MENU (3D Sonar Views only) The 3D Sonar X-Press™ Menu provides access to the settings most frequently used. Press the MENU key once while in any of the 3D Sonar Views to access the 3D Sonar X-Press™...
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 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;...
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 3D HISTORY 3D History determines the speed at which the sonar information moves across the display, and consequently the amount of history shown, and is only available on the 3D Sonar X-Press™ Menu when you are in the 3D Sonar or the 3D/2D Sonar Combo Views.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM NAVIGATION X-PRESS™ MENU The Navigation X-Press™ Menu provides access to the settings most frequently used. Press the MENU key once while in the Bird's Eye View, the Chart or the Chart/Sonar Combo or Chart/Bird’s Eye Combo View to access the Navigation X-Press™...
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SAVE CURRENT TRACK Save Current Track allows you to save the current track being displayed. After the current track is saved, a new current track is started. To Save Current Track: 1. Highlight Save Current Track on the Navigation X-Press™ Menu. 2.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM CANCEL NAVIGATION (Only when navigating) Cancel Navigation discards the current route and exits Navigation Mode. This menu choice will only appear when you are currently navigating a route. This will not delete a previously-saved route. To Cancel Navigation: 1.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SONAR MENU TAB Press the MENU key twice to access the Main Menu System and then press the RIGHT Cursor key to select the Sonar tab. NOTE: Menu choices will vary depending on system settings such as whether the unit is set for Advanced User mode or whether a 2D or a 3D View is displayed/active.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 2D BEAM SELECT 2D Beam Select sets which sonar returns from the transducer will be displayed on the screen. When Beam Select is set to 455 kHz, the returns from the 455 kHz narrow beams will be displayed in all views, and the maximum depth capability of your unit will be 240 ft (75 m).
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM FISH ID SENSITIVITY Fish ID 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.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM BOTTOM VIEW Bottom View selects the method used to represent bottom and structure on the display. Structure ID® represents weak returns in blue and strong returns in red. WhiteLine® highlights the strongest sonar returns in white resulting in a distinctive outline.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SURFACE CLUTTER (Advanced) Surface Clutter adjusts the filter that removes surface clutter noise caused by algae and aeration. The lower the setting, the less surface clutter will be displayed. The Surface Clutter menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM WATER TYPE (Advanced) Water Type configures your unit for operation in fresh or salt water. The Water Type menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode). NOTE: In salt water, what would be considered a large fish might be 2 to 10 times bigger than a large fish in fresh water (depending on the type of fish you are seeking).
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM NAVIGATION MENU TAB Press the MENU key twice to access the Main Menu System, then press the RIGHT cursor key to select the Navigation tab. NOTE: Menu choices will vary depending on system settings.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM Edit allows you to choose from a list of previously-saved waypoints, then edit the Name, Position (Latitude and Longitude) and select the Icon that will be used to represent the waypoint in the Chart and Combo Views. Delete allows you to delete a waypoint from the list of saved waypoints.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM TROLLING GRID ROTATION Trolling Grid Rotation allows you to set the orientation of the trolling grid in degrees, where a setting of 0° displays a standard North, South, East, West alignment. See Waypoints for information on how to set a Grid. To change the Trolling Grid Rotation setting: 1.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM EXPORT ALL NAV DATA (Advanced) Export All Nav Data allows you to export all saved Tracks, Waypoints and Routes to an MMC/SD card. To Export All Navigation Data: 1. Make sure you are in Advanced User Mode, and that an optional-purchase MMC/SD card is installed in the slot, then highlight Export All Nav Data on the Navigation main menu.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM CHART DETAIL LEVEL Chart Detail Level allows you to select how much chart detail you want displayed on the Navigation Views. Basic shows land areas, ports, obstructions and restricted areas. Navigation shows navaids, landmarks, ferryways and navigation routes in addition to the Basic information.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SHADED DEPTH Shaded Depth allows you to change the depth used for shading on the chart views. To change the Shaded Depth setting: 1. Highlight Shaded Depth on the Navigation main menu. 2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Shaded Depth setting.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM ALARMS MENU TAB From any view, press the MENU key twice to access the Main Menu System. The Alarms tab will be the default selection. NOTE: When an alarm is triggered, you can silence it by pressing any key.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM LOW BATTERY ALARM Low Battery Alarm sounds when the input battery voltage is equal to or less than the menu setting. The battery alarm will only sound for the battery that is connected to the 900 Series™. The Low Battery Alarm should be set to warn you when the battery voltage drops below the safety margin that you have determined.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM ARRIVAL ALARM Arrival Alarm sounds when the boat has either exceeded the distance to the destination waypoint, or has entered the Arrival Alarm Circle, based on the menu setting when navigating. Arrival Alarm allows you to set how close the boat must be to the destination waypoint before the Arrival Alarm will sound.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM SETUP MENU TAB From any view, press the MENU key twice to access the tabbed Main Menu System, then press the RIGHT cursor key until the Setup tab is selected. NOTE: Menu choices will vary depending on system settings such as whether the unit is set for Advanced User mode and what accessories are attached to the unit.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM UNITS - DISTANCE Units - Distance selects the units of measure for all distance-related readouts. To change the Units - Distance setting: 1. Highlight Units - Distance on the Setup menu. 2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Units - Distance setting.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM TRIPLOG RESET Triplog Reset resets the Triplog to zero. The Triplog provides the following information: timer for elapsed time, distance traveled since last reset, and average speed. To Reset Triplog: 1. Highlight Reset Triplog on the Setup menu. 2.
Page 79
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM Other Views, Not Navigating: On any view with a chart, as long as you are not navigating, two of the readouts are not customizable: the 2nd box always displays Heading, while the 5th box always displays Speed. On the Bird’s Eye View, when you are not navigating, there are four fixed info boxes that show Depth, Heading, Position (Lat/Lon) and Speed.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM DEPTH OFFSET (Advanced) Depth Offset will adjust the digital depth readout to indicate depth from the waterline or boats keel. Enter a positive vertical measurement from the transducer to the waterline to read the depth from the waterline. Enter a negative vertical measurement from the transducer to keel to read the depth from the keel.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM POSITION FORMAT (Advanced) Position Format selects the format of the latitude and longitude position display. This menu choice is available only when in Advanced User Mode (see Setup Menu Tab: User Mode.) To change the Position Format setting: 1.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM When navigating, the following NMEA sentences are also output: APB - Autopilot Sentence B BWR - Bearing and Distance to Waypoint RMB - Recommended Minimum Navigation Info To turn NMEA Output on or off: 1.
Accessories Menu (no accessories attached) NOTE: Accessories to enable WeatherSense® and the SmartCast® Wireless Sonar Link (WSL) require separate purchases. You can visit our website at www.humminbird.com or contact our Customer Resource Center at 1-800-633-1468 for additional details. Page 83 TROUBLESHOOTING Before contacting the Humminbird®...
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM 900 Series™ Defaults to Simulator with a Transducer Attached A connected and functioning transducer will cause the newly-started 900 Series™ to go into Normal operating mode automatically. If, when you power up the 900 Series™, it goes into Simulator mode automatically, even though a transducer is already connected, this means that the control head is not detecting the transducer.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM DISPLAY PROBLEMS There are several main conditions or sources of possible interference that may cause problems with the quality of the information displayed on the control head. Look in the following table for some symptoms of display problems and possible solutions: Problem The control head loses power at high speeds.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM FINDING THE CAUSE OF NOISE Electrical noise usually affects the display with many black dots at high speeds, and high sensitivity readings. One or more of the following sources can cause noise or interference: Possible Source of Noise Other electronic devices The boat’s engine...
This warranty is effective for one year from the date of original retail purchase. Humminbird® products found to be defective and covered by this warranty will be replaced or repaired free of charge at Humminbird®’s option and returned to the customer freight prepaid.
• Include a brief written description of the problem. • Include a copy of your receipt (to show proof and date of purchase). • Return product freight prepaid to Humminbird®, using an insured carrier with delivery confirmation. For OUT-OF-WARRANTY service, complete the following steps: •...
Transducer Cable Length ......................... . NOTE: Product specifications and features are subject to change without notice. NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, however actual depth performance may vary due to transducer installation, water type, thermal layers, bottom composition and slope.
531374-1_A - 947 Man.qxd 2/15/2005 7:54 PM Page 91 Contact Humminbird® Contact the Humminbird® Customer Resource Center in any of the following ways: By Telephone (Monday - Friday 8:00 a.m. to 4:30 p.m. Central Standard Time): 1-800-633-1468 By e-mail (typically we respond to your e-mail within three business days): custserv@johnsonoutdoors.com...
Need help?
Do you have a question about the 947C and is the answer not in the manual?
Questions and answers