INSTALLATION

CONTROL HEAD INSTALLATION

and one amp fuse (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.

Step Three - Drill the Mounting Holes

1.Set the mounting bracket in place on the mounting surface. Mark the four mounting screw locations with a pencil or punch.

2.Set the mounting bracket aside, and drill the four mounting screw holes using a 9/64” (3.6mm) bit.

Step Four - Run the Cables

1.If the cables must pass through a hole underneath the mounting surface, mark and drill a 1” (25mm) hole centered between the four mounting holes (Figure 22).

Note: if the cables must pass through the mounting surface at a different location, drill the 1" (25mm) hole at that location and pass the cables through from underneath. Also, you must break out the tabs on the rear of the mounting base using needle nose pliers (Figures 24-25).

2.Insert all cables through the 1” (25mm) hole from beneath the mounting surface.

3.Pass the cables through the grommet (if the cable hole is underneath the mounting bracket) then press the grommet in place around the cables and into the 1” (25mm) hole.

4.Pass the cables through the mounting base, out the top of the mounting bracket.

5.Place the mounting bracket on the mounting surface aligned with the drilled holes. Insert the four flathead wood screws into the mounting holes and tighten fully (Figure 23).

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Humminbird 100SX manual Step Three Drill the Mounting Holes, Step Four Run the Cables
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100SX specifications

The Humminbird 100SX is a versatile and user-friendly fish finder designed for anglers seeking an efficient and reliable tool for locating fish and navigating waterways. This compact device combines advanced technology with an intuitive interface, making it an ideal choice for both novice and experienced fishermen.

One of the standout features of the Humminbird 100SX is its wide-spectrum sonar technology. Utilizing dual-beam sonar, the 100SX provides exceptional detail and clarity in underwater imaging, allowing users to detect fish and structure beneath the surface with ease. The device can operate at multiple frequencies, ensuring optimal performance in various fishing environments. This dual-beam capability enables a wider coverage area, enhancing the chances of locating schools of fish.

The 100SX comes equipped with a 4-inch grayscale display that boasts a high-resolution screen, providing crisp visuals and clear readings even in diverse lighting conditions. This easy-to-read display helps anglers monitor underwater activity and water depth, making it easier to track fish movements and identify potential hotspots.

Additionally, this fish finder includes a built-in fish alarm feature, alerting users when fish are detected within the designated depth range. This handy function allows for a more efficient fishing experience, keeping anglers focused on their catch. The 100SX also features a deep-water capability of up to 600 feet, providing ample range for both shallow and deep-water fishing expeditions.

Navigational aids are also a highlight of the Humminbird 100SX. The device is equipped with a precise and responsive GPS system, allowing users to mark waypoints and create custom routes. This feature is invaluable for returning to fishing spots or navigating unfamiliar waters, enhancing the overall fishing experience.

In terms of design, the Humminbird 100SX is built for durability and ease of use. Its robust construction ensures it can withstand the rigors of outdoor conditions while remaining lightweight and portable. Installation is straightforward, making it accessible for users of all skill levels.

Overall, the Humminbird 100SX is a reliable and effective fish finder that combines innovative sonar technology with practical features. Its ease of use, detailed imaging, and navigational capabilities make it a valuable tool for anglers looking to maximize their fishing success on the water. Whether you are a weekend warrior or a seasoned pro, the Humminbird 100SX is an excellent addition to any fishing setup.
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