531528-1_A - 757c_787c2_&_787c2i_Man_Eng.qxp 10/16/2006 10:44 AM

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Sensitivity: Sensitivity is a user feature that adjusts the sensitivity of the sonar system to show more or less detail in the water. Higher sensitivities are often preferred, however, when the water contains debris (silt, storm debris, etc.) and it can be difficult to pick out targets. Conversely, if sensitivity is set too low, relevant targets may be missed.

SONAR: SONAR is the acronym for SOund and NAvigation Ranging. Sonar technology uses precision sound bursts transmitted underwater to determine the distance and other attributes of objects in the water. Distance can be determined because the speed of sound in water is constant, and the time for the signal to return is measured. Sound also travels very quickly underwater, making sonar a responsive, cost-effective tool. Sonar is the basic technology behind all recreational and commercial fishfinding and depthfinding devices.

Sonar Echo Enhancement: Sonar Echo Enhancement is a Humminbird® feature that describes the high degree of sonar sensitivity achieved through a combination of transmitter/receiver and software algorithms. The result of Sonar Echo Enhancement is to display virtually everything in the water that is of interest to the angler, including bait fish, game fish, thermoclines, weed beds, subtle structure, and more.

Sonar Update Rate: Sonar Update Rate is the number of times per second that the transmitter/receiver sends and receives sonar signals. A very fast sonar update rate collects more information and provides a more detailed image of the bottom, fish and structure. 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. In very shallow water (less than 10 feet), however, update rates as much as 60 times per second can be achieved.

Speed: Speed is the rate at which the boat moves through the water. Boat speed can be measured as Speed Over Ground or Speed Through Water. Speed Over Ground is provided by GPS, and is the measurement of the boats progress across a given distance. Speed Through Water is provided by a speed paddlewheel, and is the measurement of the flow past the boat, which may vary depending on current speed and direction. Speed Through Water is most critical for anglers using downriggers, as it impacts the running depth of the down riggers. Speed Over Ground is optimal for navigation, as accurate destination times can be derived from this measurement. Humminbird® products allow for input and display of both sources.

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757c, 787c2i specifications

The Humminbird 787c2i and 757c are advanced fish finders designed to enhance the fishing experience through their superior technology and features. These models are part of Humminbird's commitment to providing anglers with the tools needed to improve their catch rates and navigate the waters with ease.

One of the standout features of the Humminbird 787c2i is its brilliant 7-inch color display. The large, high-resolution screen offers crystal-clear imaging, making it easier to identify fish and underwater structures. Coupled with a user-friendly interface, the display allows anglers to quickly access vital information without distraction.

The 757c, while slightly smaller with a 7-inch screen as well, boasts similar color resolution and quality. Both models utilize Humminbird's cutting-edge sonar technologies, including DualBeam PLUS sonar, which provides versatility in fishing techniques. The DualBeam technology allows the user to switch between narrow and wide beams for precise coverage of underwater areas.

Another notable feature is the exclusive SwitchFire technology. This enables users to customize the way sonar returns are displayed on their screen. Anglers can choose between a traditional view or an enhanced view, allowing for a more detailed look at the underwater environment. The added water column data helps in recognizing fish movement and behavior, invaluable information for any angler.

Both models come equipped with built-in GPS capabilities. The 787c2i includes a mapping feature that allows for precise navigation on water. The included Navionics Gold cartography provides detailed charts and information about various water bodies, helping anglers to find new fishing hotspots effortlessly.

For connectivity, the Humminbird 787c2i and 757c support an array of accessories, including radar and i-Pilot Link, enhancing the user experience with added functionalities like autopilot and advanced navigation features.

Other characteristics include an accurate temperature sensor, adjustable backlighting for optimal visibility in various lighting conditions, and a flexible mounting system. Overall, the Humminbird 787c2i and 757c stand out not just for their features, but also for their reliability and performance on the water, making them a valuable choice for both novice and seasoned anglers. These fish finders embody the spirit of innovation that Humminbird is known for, ensuring that users have the best tools at their disposal for a successful fishing expedition.
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