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 and composition of an object.

Sonar is very fast. A sound wave can travel from the surface to a depth of 240' (70m) and back again in less than 1/4 of a second. It is unlikely that your boat can "outrun" this sonar signal.

The 100SX is a 200kHz, single-beam fishfinder. The 200 kHz frequency provides excellent sonar resolution (the ability to distinguish small returns or returns which are close to the bottom), while providing depth capabilities to 600' (185m). The shape of the sonar beam is symmetrical and covers an area of approximately 24 degrees side to side and front to rear.

Actual depth capability depends on factors such as bottom hardness, water conditions, and transducer installation. Units will typically read to deeper depths in fresh water than in salt water

SIMULATOR OPERATION

The 100SX contains a simulator which allows you to use the unit as if you are on the water. The Simulator is invaluable for learning how to operate the many features of the 100SX. There are two ways to enable the simulator: if the unit is powered off, press and hold the POWER button

for approximately 3 seconds until a continuous chirp is heard. The Simulator can also be enabled by selecting the Simulator option on the start-up screen after you normally powerup the unit. When this screen is shown, simply press the DOWN ARROW until "Simulator" is highlighted. When the screen times-out, the unit will be in simulator mode.

When in simulator operation, the 100SX responds to control inputs as if it is in actual operation, so feel free to experiment with the many features and functions to customize the 100SX for your particular operation. To exit Simulator mode, power the unit off.

WHAT YOU SEE ON-SCREEN

Your 100SX uses a 128 x 64 matrix FSTN LCD display. This type of display provides outstanding viewability in all light conditions over a wide range of temperatures.

NOTE: When in simulator mode, the word "simulator" occasionally scrolls across the display indicating that the information on-screen is not real sonar data.

At power-up, the depth range , sensitivity, and other user adjustments are set at their default settings. There are several elements on-screen which are common to all modes of operation. The

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Humminbird 100SX manual HOW Sonar Works, Simulator Operation, What YOU see ON-SCREEN
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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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