Humminbird Wide 128 Operation Manual
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Humminbird Wide 128 Operation Manual

Humminbird wide series fishfinder operation manual
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Summary of Contents for Humminbird Wide 128

  • Page 2: Installation Preparation

    All Humminbird accessories are available through your full- service Humminbird dealer or factory direct through our number listed in the Customer Support section. INSTALLATION OVERVIEW Your Humminbird fishfinder consists of two primary components to install: the control head and the transducer.
  • Page 3 INSTALLATION PREPARATION Determining How to Mount the Transducer Your Humminbird fishfinder includes a standard transducer. This transducer can be mounted on the transom of the boat or bonded to the inside of a fiberglass hull boat. The transom installation, which is the most widely used, places the transducer on the outside of the boat hull.
  • Page 4 ALTERNATE MOUNTING METHODS ALTERNATE TRANSDUCERS AND MOUNTING METHODS Your Humminbird fishfinder comes with everything necessary for installation and operation on most boats. However, there are several situations which may require a different type of transducer. Inboard boats, wood or metal hulls, and sail boats create unique transducer mounting needs Alternate transducers and mounting methods are detailed below.
  • Page 5 BEGINNING INSTALLATION Now that you have determined the transducer mounting method you can begin installation of your new Humminbird fishfinder. The installation guide included on the next few pages provides detailed step by step instructions for installation of the control head and transducer.
  • Page 6 Do not begin this transducer installation until you read the Installation Preparation in the Operation Guide. This chapter contains information critical to the correct installation of your transducer. Due to the wide variety of boat hulls, only general instructions are presented in the installation guide.
  • Page 7 If the propeller(s) is (are) forward of the transom, it may be impossible to find an area clear from turbulence, and a different mounting technique or transducer type should be considered. Step Two - Drill the Mounting Holes 1. Remove the mounting template from the front of the Operations Manual. 2.
  • Page 8 Step Four - Mount the Transducer to the Transom 1. Apply silicone sealant to the mounting holes drilled into the transom. 2. Align the transducer assembly with the drilled holes in the transom (Figure 8). 3. Use either a flat head screwdriver, a 5/16" (8mm) hex driver, or a 5/16" (8mm) socket to mount the assembly.
  • Page 9 If the cable is too short, extension cables are available to extend the transducer cable up to a total of 50' (15 m). Call Humminbird Customer Support for more information. Follow these steps to route the cable through the transom: 1.
  • Page 10 Inside the 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. The amount of loss depends on hull construction and thickness, and the installation.
  • Page 11 3. Power up the Control Head. 4. Run the boat at various speeds and water depths while observing the screen on the Control Head. If the unit functions well at low speeds but begins to skip or miss the bottom at higher speeds, the transducer needs to be moved. If depth performance is required, test the fishfinder in water at the desired depth.
  • Page 12 CONTROL HEAD INSTALLATION Step One - Determine Where to Mount Begin the installation by determining where to mount the control head. Consider the following to determine best location: The cables for power, transducer and temp/speed accessories (if applicable) should be installed first and must reach the mounting location. Extension cables are available.
  • Page 13 (not included) for the protection of the unit (Figure 21). Humminbird is not responsible for over voltage or over current failures. In order to minimize the potential for interference with other marine electronics a separate power source (such as a second battery) may be necessary.
  • Page 14 5. Install the control head by sliding it onto the mounting bracket until it is fully seated. To remove the unit simply depress the latch on the rear of the unit and lift (Figure 29). Your Humminbird is now ready for operation. INSTALLATION CONTROL HEAD INSTALLATION...
  • Page 15 Note: it is often necessary to make several incremental transducer adjustments before optimum high-speed performance is achieved. Important: For Transom Mount transducer installations, install the third mounting screw after the final transducer adjustments. Humminbird 3 Humminbird Lane Eufaula, Alabama 36027...
  • Page 16 The Wide 128 is completely automatic and easy to use. Simply press the POWER button and the unit will locate and track the bottom from 2' to 600' changing ranges as necessary, display any structure or suspended fish and work at speeds from 0 to over 70 mph.
  • Page 17 Simulator mode, power the unit off. WHAT YOU SEE ON-SCREEN Your Wide 128 uses a 64 x 128 matrix SuperTwist LCD display. This type of display provides outstanding viewability in all light conditions over a wide range of temperatures.
  • Page 18 The best way to learn to interpret structure is to operate the Wide 128 over a variety of known conditions and experiment with user functions to best represent those conditions on-screen.
  • Page 19 The backlight is very effective for low-light and nighttime operation. When the backlight is on, the Wide 128 will consume more power than with the backlight off. This is important when using the Wide 128 in a portable configuration powered by a separate battery, or when powering the unit from a trolling motor battery.
  • Page 20 MENU FUNCTIONS Senstivity The Sensitivity function controls the sensitivity of the sonar receiver. The Wide 128 automatically adjusts the level of receiver sensitivity based on a number of factors including the depth of the water and the level of noise present. Noise can be caused by other electronic devices, engines, trolling motors, propeller cavitation and hydrodynamic flow among others.
  • Page 21 The Wide 128 automatically adjusts the depth range depending on the depth of the water. The unit tries to maintain the bottom depiction about 2/3 down the total range (for example, in 20' of water, the 0-30' range would be selected).
  • Page 22 180'-480' depth range is in use, the Zoom range is 30', and if the 600' range is in use, the Zoom range is 60'. The Wide 128 shows Zoom range in conjunction with the full depth range. The Zoom range is shown on the left side of the screen and full range information is shown on the right side of the display.
  • Page 23 Fish Alarm. Once the Fish Alarm is enabled, the Wide 128 emits an audible beep when the selected size fish symbol appears on-screen. The sound is slightly different for each of the three fish symbol sizes, so with practice, it is possible to distinguish the size of the detected fish without looking at the unit.
  • Page 24 Use Diagnostic while running the boat at high speeds to show the voltage gain. Also, if you are using the Wide 128 in portable configuration or from the trolling motor battery, Diagnostic can be used to evaluate the health of the battery by showing the current voltage.

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