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Operations Manual
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THANK YOU Thank you for choosing Humminbird, America’s #1 name in fishfinders. Humminbird has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. 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 Guarantee - free of charge during the first year after purchase, and available at a reasonable rate after the one-year
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TABLE OF CONTENTS Section 1: INSTALLATION PREPARATION . . . . . . . . . . . . . . . 2 Parts Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . 2 Alternative Transducers and Mounting Methods. . . . . . 4 Transducer Exchange . . . . . . . . . . . . . . . . . . . . . . . . . 5 Beginning Installation . . . . . . . . . . . . . . . .
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INSTALLATION PREPARATION PARTS SUPPLIED PARTS SUPPLIED Before installing your 105SX, please ensure the following parts are included in the box: • 105SX fishfinder • Transducer with 20' (6m) of cable and mounting hardware kit • Mounting system and mounting hardware kit • 6' (2m) power cable • Publications kit • Temperature Probe If any of these items is missing, call our Customer Support Hotline. ACCESSORIES Humminbird offers a wide assortment of accessories that complement and expand the capabil
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INSTALLATION PREPARATION INSTALLATION OVERVIEW surface of the water in an area that has smooth water flow - usually on the transom of the boat. There are several mounting options for the transducer. Review the following section to determine the method that works for you and your boat. Determining How to Mount the Transducer The 105SX includes a model XHS- 6-24 transducer. This transducer can be mounted on the transom of the boat, or bonded to the inside of a fiberglass hull boat. The transom ins
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INSTALLATION PREPARATION ALTERNATE TRANSDUCERS AND MOUNTING METHODS ALTERNATE TRANSDUCERS AND MOUNTING METHODS The 105SX 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. Portable Mounting The standard transducer can be adapted f
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INSTALLATION PREPARATION TRANSDUCER EXCHANGE TRANSDUCER EXCHANGE Other transducers are available as replacements for the standard transducer. You may exchange your new and unassembled transducer for another type by returning it to the address listed in Customer Support. Some transducers may have additional costs. Refer to the Accessory cata- log or call Customer Support for information. BEGINNING INSTALLATION Now that you have determined the transducer mounting method, you can begin installation
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USING THE 105SX HOW SONAR WORKS HOW SONAR WORKS Your Humminbird unit uses sonar to locate and define underwater objects, define the bottom terrain, as well as determine distance. Sonar technology is based on sound waves. Your Humminbird unit sends out a sound wave signal. With this signal it determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off an object. Your Humminbird uses the reflected signal to interpret location, size
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USING THE 105SX SIMULATOR OPERATION SIMULATOR OPERATION The 105SX contains a simulator that allows you to use the unit as if you are on the water. The simulator is invaluable for learning how to operate the 105SX. There are two ways to start the simulator. If the unit is powered off, press and hold the POWER button for approximately three seconds until you hear a continuous chirp. The simulator can also be started by selecting the Simulator option on the start- up screen after you power-up the
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USING THE 105SX WHAT YOU SEE ON-SCREEN If you are using the 105SX in Simulator when no transducer is connected, any selected options are lost when the unit is powered off. The 105SX will return to Factory Settings, or options selected when last used with a transducer, if no transducer is connected. IMPORTANT: A transducer must be connected to the 105SX in order to retain user settings selected when in simulator mode. If no transducer is detected, the unit defaults to pre-selected options when po
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USING THE 105SX WHAT YOU SEE ON-SCREEN Bottom Depiction Zero Line When in Auto mode, the horizontal line at the top of the screen is the “zero line,” representing the surface of the water. Occasionally there is a gap in this line. This gap indicates the unit is updating the display even if the bottom is not visible on- screen, or if the bottom information is not changing. New sonar information appears on the right side of the graphic area of the display and moves to the left as new information i
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USING THE 105SX WHAT YOU SEE ON SCREEN Structure. Structure is defined as any object physically attached to the bottom. The sonar configuration of the 105SX is optimized to give the most accurate depiction of bottom structure possible. Grass, trees, stumps, wrecks or other debris are accurately displayed, however the depiction of these objects varies with boat speed and direction. The best way to learn to interpret structure is to operate the 105SX over a variety of known conditions and experime
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USING THE 105SX CONTROL FUNCTIONS + ID Fish different species of fish have different Depth sonar characteristics, so it is not always possible to distinguish fish size between varying species. The signal intensity is “normalized” for depth so a small fish close to the boat does not appear as a large fish symbol. + ID adds an additional piece of information to help the user locate fish. On selected fish symbols, the digital depth of the designated fish is drawn to help locate the fish vertically
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USING THE 105SX CONTROL FUNCTIONS When powering the unit from a battery such as in portable applications, you can prolong the battery life by using the backlight at a minimum. The three lower buttons, MENU, UP ARROW, and DOWN ARROW work together to control the 105SX menu-controlled user functions. Menu. MENU displays a menu on- Menu Heading screen for adjustment. In normal operation, pressing MENU repeatedly cycles through all available menu headings. When a menu heading displays, the full menu
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USING THE 105SX CONTROL FUNCTIONS Menu Layout. All menus use the same basic layout. The heading at the top describes the menu function. The UP ARROW and DOWN ARROW symbols to the left of the menu indicate which buttons are available for adjustment. In menus that have several possible settings, a range of adjustment indicator shows the total range available and the current setting. Within the menu are the options available. The selected option or current setting is highlighted in the black box. I
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USING THE 105SX MENU FUNCTIONS Menu Functions Sensitivity. The Sensitivity function controls the sensitivity of the sonar receiver. The 105SX 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. The user has the option of adjusting (+)High Sensitivity (-)Low Sensitivity
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USING THE 105SX MENU FUNCTIONS After an adjustment is made, the menu disappears and the new sensitivity setting is in affect. If additional time is needed to study a menu, press and hold the MENU button and the menu will remain on- screen indefinitely. If you need to make an additional adjustment, press the UP ARROW or DOWN ARROW button. Depth Range. The Depth Range function controls the vertical distance displayed on the graphic area of the display. There are nine depth ranges available. The to
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USING THE 105SX MENU FUNCTIONS Using manual Depth Range control, you can view sonar information from the area near the surface in greater detail. To return to automatic Depth Range control, press the MENU button until the Depth Range menu appears on- screen and use the UP ARROW to select AUTO. Zoom. Zoom is similar to Depth Range because it controls the range of information displayed on screen. Zoom, however, allows selection of Depth Range ranges beneath the surface so any area of water between
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USING THE 105SX MENU FUNCTIONS 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. Zoom can either operate automatically, in which the Zoom range is constantly adjusted to show the bottom, or manually, in which the user controls the location of the Zoom range. Automatic Zoom is especially helpful when looking for structure or bottom detail. The Automatic Zoom keeps the bottom in view even in quickly changing terrain, but is
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USING THE 105SX MENU FUNCTIONS Depth Alarm. The 105SX contains an audible alarm to warn you of shallow water depths. The alarm is adjustable to depths of 3' to 99' (30m). When the alarm is enabled, an audible alarm sounds if the water beneath the boat is equal to or less than the selected alarm depth. The alarm sounds continuously for about five seconds, and then intermittently to remind you that you are still in shallow water. Fish Alarm. The Fish Alarm alerts you to the presence of fish, or ot
