Table of Contents

 

Section 1: Read Me First!

1

Capabilities and Specifications:

3

How Eagle Sonar Works

5

How GPS Works

6

Introduction to GPS and WAAS

7

Free Training Aids Available

10

How to use this manual: typographical conventions

11

Arrow Keys

11

Keyboard

11

Menu Commands

11

Instructions = Menu Sequences

11

Section 2: Installation & Accessories

13

Preparations

13

Transducer Installation

13

Recommended Tools and Supplies

14

Single-frequency transom installations

14

Dual-frequency transom installations

14

Single-frequency trolling motor installations

14

Shoot-through hull installations

14

Selecting a Transducer Location

14

How low should you go?

15

Shoot-Thru-Hull vs. Transom Mounting

16

Transom Transducer Assembly and Mounting

17

Trolling Motor Bracket Installation (single-frequency only) 22

Transducer Orientation and Fish Arches

23

Shoot-Thru-Hull Preparation

24

Hulls With Flotation Materials

24

Testing Determines Best Location

24

Shoot-Thru-Hull Installation

26

Speed/Temperature Sensors

28

Optional Speed Sensor Installation

29

Power Connections

31

Antenna/Receiver Module Installation

32

NMEA Cable Connections

33

NMEA Wiring

33

Mounting the Unit: Bracket, In-Dash or Portable

33

MMC or SD Card Memory Card Installation

37

Other Accessories

38

Section 3: Basic Sonar Operation

41

Keyboard

41

Power/lights on and off

42

Main Menu

42

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Eagle Electronics 640C, 640cDF manual Table of Contents

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.