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Eagle Electronics 640C, 640cDF manual Chart Speed, ColorLine, To change chart speed

Models: 640c 640C, 640cDF

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Chart Speed

The rate echoes scroll across the screen is called chart speed. The de- fault is maximum. We recommend you keep the default setting for most all fishing conditions.

You may consider experimenting with chart speed when you are sta- tionary or drifting slowly. Sometimes the unit will display better im- ages when chart speed is adjusted to match the speed of your boat.

If you are at anchor, ice fishing or fishing from a dock, experiment with a chart speed around 50 percent. If you are drifting slowly, try a chart speed around 75 percent. When you are stationary and a fish swims through the sonar signal cone, the image appears on the screen as a long line instead of a fish arch. Reducing the chart speed may result in a shorter line that more closely resembles a regular fish return.

Sonar Page menu with Chart Speed command selected (left).

Chart Speed Control Bar (right).

If you experiment with chart speed, remember to reset it to maximum when you resume trolling or moving across the water at higher speed.

To change chart speed:

1.From the Sonar Page, press MENU↓ to CHART SPEEDENT.

2.The Chart Speed Control Bar appears. Press ↓ to decrease chart speed. Press ↑ to increase chart speed.

3.When it is set at the desired level, press EXIT.

ColorLine

ColorLine lets you distinguish between strong and weak echoes. It paints a brighter color on targets that are stronger than a preset value. This allows you to tell the difference between a hard and soft bottom.

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Eagle Electronics 640C, 640cDF manual Chart Speed, ColorLine, To change chart speed
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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.