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Eagle Electronics 640C, 640cDF manual Stop Chart, Surface Clarity

Models: 640c 640C, 640cDF

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3.Press ↓ or ↑ to select chart nameENT↑ to SONAR SIMULATOR

ONENTEXIT.

While you are in the Sonar Simulator menu, do not forget to check Simulate Position if you want to run the sonar and GPS simulators simultaneously. As you review sonar logs, you can create waypoints at sites you want to revisit.

While the simulator is running, you can switch from one chart log to another by opening the Sonar Simulator menu and using the in- structions in steps 2 and 3 to select a different chart.

NOTE:

If you turn on your unit before attaching a transducer, it may enter demo mode, which will scroll a sonar chart across the screen. The words demo mode flash on the bottom of the display. Demo mode will stop when you turn on the unit with a transducer attached.

Stop Chart

If you are running multiple units on a boat or using this unit in a car, there are times when you may want to turn off the sonar. The Stop Chart command stops the chart from scrolling. The sonar chart will restart each time you turn on your unit.

From the Sonar Page press MENU↓ to STOP CHARTENTEXIT.

To turn get the sonar chart scrolling again, repeat the step above.

Sonar Menu with Stop Chart command selected.

Surface Clarity

The markings extending downward from the zero line on the chart are called surface clutter. They are caused by wave action, boat wakes, temperature inversion and more. The surface clarity control reduces or eliminates surface clutter signals from the display. It does this by

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Eagle Electronics 640C, 640cDF manual Stop Chart, Surface Clarity
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640c, 640C, 640cDF specifications

Eagle Electronics has made a significant mark in the world of marine electronics with its innovative and reliable products, notably the Eagle Electronics 640C, 640cDF, and the 640c models. These devices are designed for anglers and navigators who seek advanced functionality combined with user-friendly operation.

The Eagle Electronics 640C is a high-performance fish finder that is primarily admired for its vibrant display and precise mapping capabilities. Equipped with a 640x480 pixel, full-color LCD screen, it provides crystal-clear visibility even in bright sunlight. This device uses advanced sonar technology to offer detailed underwater images, allowing users to locate fish with remarkable accuracy. The high-resolution graphics enhance the experience while providing an intuitive interface for easy navigation through its various features.

The 640cDF, a variant of the 640C, elevates the standard fish finder experience by incorporating dual-frequency sonar capabilities. This model operates on both 200 kHz and 83 kHz frequencies, allowing users to switch between narrow and wide beams based on their fishing needs. The dual-frequency technology provides a more comprehensive view of the underwater environment, making it easier to identify different types of fish and underwater structures. Additionally, the 640cDF boasts temperature sensing capabilities, giving anglers valuable data regarding water conditions that can influence fish behavior.

All models in the Eagle 640 series feature built-in GPS navigation. The integrated GPS provides a reliable mapping system that allows users to mark waypoints and create routes, significantly improving navigation efficiency. This technology is vital for those who engage in long-distance fishing trips or travel in unfamiliar waters. The GPS functionality, combined with the sonar capabilities, makes these devices essential tools for successful fishing excursions.

Furthermore, the Eagle 640 series devices come equipped with customizable display options, allowing users to tailor the information presented based on their preferences. The intuitive menu system simplifies the navigation of the device's various features, empowering users to quickly access critical data without unnecessary complications.

In summary, the Eagle Electronics 640C, 640cDF, and the 640c represent a blend of cutting-edge technology and user-centric design in the marine electronics space. With features such as high-resolution displays, dual-frequency sonar, built-in GPS navigation, and customizable settings, these devices enhance the fishing experience, making them invaluable assets for anglers and navigators alike.