Humminbird 343c Operation Manual
  1. Manuals
  2. Brands
  3. Humminbird Manuals
  4. Fish Finder
  5. 343C
  6. Operation manual

Humminbird 343c Operation Manual

300 series
Hide thumbs Also See for 343c:
Table of Contents

Advertisement

Quick Links

343c Operations Manual
343c Operations Manual
531446-1_E

Advertisement

Table of Contents
loading

Related Manuals for Humminbird 343c

Summary of Contents for Humminbird 343c

  • Page 1 343c Operations Manual 343c Operations Manual 531446-1_E...

  • Page 2: Thank You

    Thank You! 1-800-633-1468 www.humminbird.com WARNING! This device should not be used as a navigational aid to prevent collision, ground- ing, boat damage, or personal injury. When the boat is moving, water depth may change too quickly to allow time for you to react. Always operate the boat at very slow speeds if you suspect shallow water or submerged objects.

  • Page 3: Table Of Contents

    Table of Contents How Sonar Works DualBeam PLUS™ Sonar ........................4 What’s On the Display Views Sonar View .............................. 8 Understanding Sonar History ......................9 Real Time Sonar (RTS®) Window ....................10 Freeze Frame ............................10 Bottom Presentation .......................... 11 Sonar Zoom View ..........................
  • Page 4 Table of Contents Sonar Menu Tab Beam Select............................32 Fish ID+™ .............................. 33 Fish ID Sensitivity ..........................34 Real Time Sonar (RTS®) Window ....................34 Bottom View ............................35 Zoom Width ............................35 83 kHz Sensitivity ......................35 (Advanced) Depth Lines ........................
  • Page 5 Customer Resource Center at (334) 687-6613. NOTE: Entries in this Table of Contents which list (with Temp/Speed) require the purchase of a separate accessory. You can visit our web site at www.humminbird.com to order this accessory online or contact our Customer Resource Center at 1-800-633-1468.

  • Page 6: How Sonar Works

    How Sonar Works Sonar technology is based on sound waves. The 300 Series™ Fishing System uses sonar to locate and define structure, bottom contour and composition, as well as depth directly below the transducer. Your 300 Series™ Fishing System sends a sound wave signal and determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off of an object;...
  • Page 7 When all the echoes are viewed side by side, an easy to interpret "graph" of the bottom, fish and structure appears. The sound pulses are transmitted at various frequencies depending on the application. Very high frequencies (455 kHz) are used for greatest definition but the operating depth is limited.
  • Page 8 The power output is the amount of energy generated by the sonar transmitter. It is commonly measured using two methods: • Root Mean Square (RMS) measures power output over the entire transmit cycle. • Peak to Peak measures power output at the highest points.

  • Page 9: Dualbeam Plus™ Sonar

    DualBeam PLUS™ Sonar Your 300 Series™ Fishing System uses a 200/83 kHz DualBeam PLUS™ sonar system with a wide (60°) area of coverage. DualBeam PLUS™ sonar has a narrowly focused 20° center beam, surrounded by a second beam of 60°, expanding your coverage to an area equal to your depth.

  • Page 10: What's On The Display

    What’s On the Display The 300 Series™ Fishing System can display a variety of useful information about the area Depth - water depth; can be set to alarm when the water becomes too shallow. Cursor - available in Freeze Frame and can be positioned in the Sonar View to provide depth of a sonar return and bottom depth below the cursor.
  • Page 11 under and adjacent to your boat, including the following items: High Sonar Intensity Return Bait Ball Thermoclines - layers of water with different temperatures that appear at different depths and different times of the year. A thermocline typically appears as a continuous band of many colors moving across the display at the same depth.

  • Page 12: Views

    Views The views available on your 300 Series™ Fishing System are: • Sonar View • Zoom View • 200/83 kHz Split Sonar View • Big Digits View • Circular Flasher View. Sonar View is the default view. When the VIEW key is pressed, the display cycles through the available views.

  • Page 13: Sonar View

    Sonar View Sonar View presents a historical log of sonar returns. Depth is always displayed. Readouts for temperature and speed are automatically displayed if the appropriate accessory is connected. The most recent sonar returns are charted on the right side of the window;...

  • Page 14: Understanding Sonar History

    Understanding Sonar History It is important to understand the significance of the 300 Series™ Fishing System display. The display does NOT show a literal 3-dimensional representation of what is under the water. Each vertical band of data received by the control head and plotted on the display represents something that was detected by a sonar return at a particular time.

  • Page 15: Real Time Sonar (Rts®) Window

    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.

  • Page 16: Bottom Presentation

    Bottom Presentation As the boat moves, the unit charts the changes in depth on the display to create a profile of the Bottom Contour. The type of bottom can be determined from the return charted on the display. A Hard Bottom such as compacted sediment or flat rock appears as a thinner line across the display.
  • Page 17 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. This has the benefit of clearly defining the bottom on the display.

  • Page 18: Sonar Zoom View

    Sonar Zoom View Sonar 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 Zoom View, the display is split to show a narrow slice of the full range view on the right and the zoomed view on the left.

  • Page 19: 200/83 Khz Split Sonar View

    200/83 kHz Split Sonar View Split Sonar View displays sonar returns from the 83 kHz wide beam on the left side of the screen and displays sonar returns from the 200 kHz narrow beam on the right side of the screen. Depth is always displayed in the upper left hand corner. You can use the Split Sonar View to make side by side comparisons between the sonar returns from the 83 kHz wide beam and the 200 kHz narrow beam.

  • Page 20: Big Digits View

    Big Digits View Big Digits View provides digital data in a large, easy-to-see format. Depth is always displayed. Readouts for temperature, speed and Triplog information are displayed automatically if the appropriate accessory is connected to the system. The Triplog shows distance traveled, average speed, and time elapsed since the Triplog was last reset.

  • Page 21: Key Functions

    Key Functions Your 300 Series™ Fishing System 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. POWER/LIGHT Key The POWER/LIGHT key is used to turn the 300 Series™ Fishing System on and off, and also to adjust the backlight and contrast of the display.

  • Page 22: Menu Key

    MENU Key The MENU key is used to access the menu system. Start-Up Options Menu - Press the MENU key during the power up sequence to view the Start-Up Options menu. X-Press Menu - Press the MENU key once for the Sonar X-Press Menu.

  • Page 23: Exit Key

    EXIT Key The EXIT key has multiple functions, depending on the situation: • If an alarm is sounding, pressing EXIT will cancel the alarm. • If a menu tab is selected, pressing EXIT will exit the menu mode and return to the view.

  • Page 24: Powering Up The Unit

    Turn on your 300 Series™ Fishing System by pressing the POWER/LIGHT key. The Title screen is displayed until the Fishing System begins 343c operation. Your Fishing System will begin Normal or Simulator operation, depending on the presence or absence of a transducer. 343c Title Screen...

  • Page 25: The Menu System

    The Menu System The menu system is divided into easy-to-use menu modules. The main components of the menu system are: Start-Up Options Menu - Press the MENU key during the power up sequence to view the Start-Up Options menu. X-Press Menu - The X-Press Menu allows you to access the settings that are changed frequently...
  • Page 26 User Mode (Normal or Advanced) - An Advanced Mode is provided for users who desire the highest level of control over the Fishing System and Normal Mode for users who desire greater simplicity and fewer menu choices. Additional Advanced menu choices will be displayed throughout the menu system when you navigate to specific menus while in Advanced Mode.

  • Page 27: Start-Up Options Menu

    Start-Up Options Menu Press the MENU key when the Title screen is displayed to access the 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. If you wait too long, the system will default to whichever menu mode happens to be highlighted: •...

  • Page 28: Simulator

    Simulator Use the Simulator to learn how to use your 300 Series™ Fishing System 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.

  • Page 29: System Status

    System Status Use System Status to view system connections and to conduct a unit self-test. The following screens are displayed in turn when you press the VIEW button when using System Status: • Self Test • Accessory Test. System Status Self Test Screen Self Test displays results from the internal diagnostic self test, including unit serial number, Printed Circuit Board (PCB) serial number, software revision, total hours of operation and the input voltage.

  • Page 30: Sonar X-Press Menu

    Sonar X-Press Menu The Sonar X-Press Menu provides access to the settings most frequently-used. Press the MENU key once while in any of the Sonar Views to access the Sonar X-Press Menu. NOTE: Upper Range only appears in Advanced User Mode when in Sonar, Split Sonar, Big Digits and Circular Flasher Views.

  • Page 31: Sensitivity

    Sensitivity Sensitivity controls how much detail is shown on the display and will adjust the sensitivity of all sonar frequencies. 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.

  • Page 32: Upper Range (Advanced: Sonar, Split Sonar, Big Digits And Circular Flasher Views Only)

    Upper Range (Advanced: Sonar, Split Sonar, Big Digits and Circular Flasher Views only) Upper Range sets the shallowest depth range that will be displayed on the Sonar, Split Sonar, Big Digits and Circular Flasher views. The Upper Range menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode) and can only be accessed from the Sonar, Split Sonar, Big Digits and Circular Flasher views.

  • Page 33: Lower Range

    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. Use both Upper and Lower Range together to view a specific depth range manually when looking for fish or bottom structure.

  • Page 34: Chart Speed

    Chart Speed Chart Speed determines the speed at which the sonar information moves across the display, and consequently the amount of detail shown. A faster speed shows more information and is preferred by most anglers; however, the sonar information moves across the display quickly. A slower speed keeps the information on the display longer, but the bottom and fish details become compressed and may be difficult to interpret.

  • Page 35: Bottom Lock

    Bottom Lock (Sonar Zoom View only) Bottom Lock changes the mode of the Zoomed view in the Sonar Zoom View. Bottom Lock continuously graphs the bottom at a constant point on the display regardless of changes in depth. This "flattens" out the bottom contour, but is effective at showing fish on or near the bottom.

  • Page 36: Sonar Menu Tab

    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. Sonar Menu...

  • Page 37: Beam Select

    Beam Select Beam Select sets which sonar returns from the transducer will be displayed on the screen. When set to 200/83 kHz, the returns from both beams are blended by starting with the 83 kHz wide beam return, dimming it, and then overlaying it with the 200 kHz narrow beam return.

  • Page 38: Fish Id

    Fish ID+ Fish ID+ uses advanced signal processing to interpret sonar returns, and will display a Fish Symbol when very selective requirements are met. When a fish is detected, a fish icon and its depth are displayed above the return that has been classified as being a fish.

  • Page 39: Fish Id Sensitivity

    Fish ID Sensitivity Fish ID Sensitivity adjusts the threshold of the Fish 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. This is helpful when seeking larger species of fish.

  • Page 40: Bottom View

    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. This has the benefit of clearly defining the bottom on the display. (See Bottom Presentation for more information.).

  • Page 41: Depth Lines (Advanced)

    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.

  • Page 42: Surface Clutter (Advanced)

    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).

  • Page 43: Noise Filter (Advanced)

    Noise Filter (Advanced) Noise Filter adjusts the sonar Noise Filter to limit interference on the display from sources such as your boat engine, turbulence, or other sonar devices. The Noise Filter menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode). NOTE: The Off setting removes all filtering;...

  • Page 44: Water Type (Advanced)

    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).

  • Page 45: Alarms Menu Tab

    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. The alarm will be silenced, and will not be triggered again until a new instance of the alarm condition is detected.

  • Page 46: Depth Alarm

    Depth Alarm Depth Alarm sounds when the depth becomes equal to or less than the menu setting. To change the Depth Alarm setting: 1. Highlight Depth Alarm on the Alarms main menu. 2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Depth Alarm setting.

  • Page 47: Low Battery Alarm

    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 300 Series™ Fishing System. The Low Battery Alarm should be set to warn you when the battery voltage drops below the safety margin that you have determined.

  • Page 48: Alarm Tone

    Alarm Tone Alarm Tone selects the pitch of the alarm sound. A brief tone will be produced as you adjust the Alarm Tone so that you can select the tone that you can hear best. To change the Alarm Tone setting: 1.

  • Page 49: Setup Menu Tab

    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. Menu choices will vary depending on system NOTE: settings such as whether the unit is set for Advanced User mode, whether it is an International model, or whether a Temp/Speed accessory is currently connected.

  • Page 50: Units - Depth

    Units - Depth Units - Depth selects the units of measure for all depth- related readouts. To change the Units - Depth setting: 1. Highlight Units - Depth on the Setup menu. 2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Units - Depth setting.

  • Page 51: Units - Speed (With Temp/Speed)

    Units - Speed (with Temp/Speed) Units - Speed selects the units of measure for speed-related readouts, and will appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once. To change the Units - Speed setting: 1.

  • Page 52: Triplog Reset (With Temp/Speed)

    Triplog Reset (with Temp/Speed) Triplog Reset resets the Triplog to zero, and will appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once. The Triplog provides the following information: timer for elapsed time, distance traveled since last reset, and average speed.

  • Page 53: Select Views (Advanced)

    Select Views (Advanced) Select Views sets the available views to either hidden or visible in the view rotation. The view will be removed from the view rotation if it is set to Hidden and will be displayed in the view rotation if it is set to Visible.

  • Page 54: Select Readouts (Advanced, Sonar View Only)

    Select Readouts (Advanced, Sonar view only) Select Readouts sets individual digital readouts on the Sonar View. This Advanced feature allows you to select what data will be displayed in each of 5 fixed-position data windows arranged around the left and bottom edges of the Sonar View screen, or whether a particular window will be turned off, displaying nothing in that area;...

  • Page 55: Depth Offset (Advanced)

    Depth Offset (Advanced) Depth Offset will adjust the digital depth readout to indicate depth from the waterline or boat's 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.

  • Page 56: Speed Calibration (Advanced, With Temp/Speed Only)

    Speed Calibration (Advanced, with Temp/Speed only) Speed Calibration will adjust the speed readout by the percentage entered, and will appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once, when the unit is in Advanced User Mode (see Setup Menu Tab: User Mode.) To change the Speed Calibration setting: 1.

  • Page 57: Troubleshooting

    Troubleshooting Before contacting the Humminbird® Customer Resource Center, please read the following section. Taking the time to review these troubleshooting guidelines may allow you to solve a performance problem yourself, and therefore avoid sending your unit back for repair. 300 Series™ Doesn’t Power Up If your 300 Series™...

  • Page 58: Display Problems

    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 Possible Cause If the power output of your boat’s engine is...

  • Page 59: Finding The Cause Of Noise

    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 Isolation Turn off any nearby electronic devices to see if the Other electronic devices problem goes away, then turn them on one at a time to see if the noise re-appears.

  • Page 60: Specifications

    Specifications Depth Capability Power Output Operating Frequency Area of Coverage Target Separation Power Requirement LCD Matrix Transducer Transducer Cable Length Current Draw NOTE: NOTE: ENVIRONMENTAL COMPLIANCE STATEMENT: WEEE DIRECTIVE:...

  • Page 61: Glossary

    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.
  • Page 62 Fish and other objects close to the bottom that fall within the dead zone will probably not be visible in the sonar beam. Precision sonar beams, such as the Humminbird® 20° beam, have a smaller dead zone than wider sonar beams.
  • Page 63 When this distance change is graphed on the display, an arch appears. Fish ID+™: Fish ID+™ is a Humminbird® feature that uses advanced sonar processing algorithms to determine if a detected object is likely to be a fish. When the sonar signal from an object meets strict parameters, the unit draws a Fish Symbol (or icon) and the digital depth of the target.
  • Page 64 Many Humminbird® units can operate across a very broad depth range (up to 2500 feet) which causes the unit to "look" up to that full depth under some circumstances.
  • Page 65 Chart Speed setting. A greater number of horizontal pixels show more sonar history that the boat has passed through. On many models, Humminbird® provides the most vertical pixels to provide a better display resolution. See Chart Speed and Pixels.
  • Page 66 Additionally, the mount offers 90° tilt and 360° swivel capability to adjust the viewing angle of the unit as you move about the boat. Real Time Sonar: Real Time Sonar is a Humminbird® technology that delivers ultra- fast sonar transmitter/receiver operation and results in a more detailed instantaneous view of what is under the boat.
  • Page 67 Many Humminbird® units operate at up to 40 times per second when in single frequency operation. Due to the limitation of the speed of sound in water, the update rate begins to slow as depth increases to deeper than 50 feet.
  • Page 68 (i.e. two fish hanging very close, or a fish hanging very close to structure). Humminbird® fishfinders provide a very good 2 1/2 inches of target separation in shallower than 100 feet of depth. Target separation decreases as depth increases due to the need for a longer Pulse Width to achieve greater depth.
  • Page 69 See Transducer and Noise. TripLog: TripLog is a Humminbird® feature that provides an on-screen counter for Elapsed Time, Average Speed and Total Distance traveled, and requires a speed input to activate the feature. TripLog appears on the Big Digits View, and can be reset to zero through the TripLog menu.
  • Page 70 The downlooking beam provides depth information directly below the boat. X-Press™ Menu: The X-Press™ Menu is a Humminbird® feature that makes the most commonly-used menu selections available with one press of the MENU key. Items that appear on the X-Press™...
  • Page 71 Notes...
  • Page 72 Notes...
  • Page 73 Notes...

  • Page 74: Contact Humminbird

    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): cservice@johnsonoutdoors.com...

Table of Contents