changing the sensitivity of the receiver, decreasing it near the surface and gradually increasing it as the depth increases.

There are three levels of surface clarity available: off, low, medium and high. The default level is off.

To adjust the Surface Clarity level:

1.From the Sonar Page, press MENU↓ to SONAR FEATURESENT↓ to

SURFACE CLARITY ENT.

Surface clutter

Sonar Features menu with Surface Clarity selected (left). Surface Clar-

ity turned off (center). Surface Clarity set at high level (right).

2. Use ↓ ↑ to select clarity level and press EXIT repeatedly.

Zoom & Zoom Bar

Zooming in the display is the easiest way to enlarge small detail, fish signals and the bottom. This unit lets you zoom in the display by pressing the Zoom In key, ZIN.

Pressing ZIN once doubles the size (2X) of all echoes on the screen. Pressing it again quadruples the size of the echoes (4X). When turned on, the zoom bar on the far right side of the screen shows which echoes will be displayed on the screen when the ZIN key is pressed.

To turn on the zoom bar, press MENU↓ to SONAR FEATURESENT. Press ↓ to ZOOM BARENTEXITEXIT. Repeat these steps to turn it off.

For example, pressing the ZIN key once will enable a 2X zoom which will show all echoes between the top and bottom of the 2X zoom bar. Pressing the key again will give a 4X zoom and only the echoes between the top and bottom of the 4X bar will show on the screen.

Press ZOUT (Zoom out) to return the display to the normal mode.

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Eagle Electronics 642cDF manual Zoom & Zoom Bar, To adjust the Surface Clarity level
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642c, 642cDF specifications

Eagle Electronics has made significant strides in the world of electronics with its flagship models, the 642cDF and 642c. These devices are tailored for enthusiasts and professionals alike, offering a combination of advanced technology, user-centric design, and robust performance.

One of the standout features of the Eagle Electronics 642cDF is its high-definition display. The device boasts a vivid color screen that enhances visibility and improves user interaction, making it easier for users to navigate through various functions and settings, even in bright sunlight. The display is also designed for durability, resisting scratches and damage from regular use.

Both the 642cDF and 642c come equipped with advanced GPS capabilities, ensuring precise navigation and location tracking. This feature is crucial for outdoor activities such as hiking, boating, and off-roading. The built-in mapping software includes a vast array of preloaded topographic maps, providing users with essential information about terrain, elevation, and points of interest.

In terms of connectivity, these models excel with Bluetooth and Wi-Fi capabilities. This allows users to seamlessly connect to other devices and share data without hassle. Whether it’s syncing with a smartphone or sharing navigation data with another device, the wireless options enhance the user experience significantly.

The design of the 642cDF and 642c is also notable. Ergonomically shaped, these devices fit comfortably in hand, and the layout of buttons and controls is intuitive and user-friendly. This attention to ergonomics makes prolonged use more comfortable and reduces the likelihood of user error.

Eagle Electronics has prioritized durability in its products. Both models are water-resistant and built to withstand harsh environmental conditions, making them ideal for outdoor enthusiasts who require reliable technology. The rugged construction means users can depend on them in any situation, whether they are sailing through rain or trekking across muddy trails.

Battery life is another key characteristic. The 642cDF and 642c have been engineered to provide extended usage on a single charge, allowing users to rely on their devices during long excursions without worrying about power depletion.

In conclusion, the Eagle Electronics 642cDF and 642c stand out as top-tier electronic devices in their category. With features such as a high-definition display, advanced GPS capabilities, robust connectivity, ergonomic design, durability, and impressive battery life, they are well-suited for both casual users and professionals seeking reliable and advanced electronic solutions for their activities. As technology continues to evolve, these machines remain at the forefront, proving their worth in the ever-competitive electronics market.
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