Stop Chart

80

Surface Clarity

80

Zoom & Zoom Bar

81

Zoom Pan

82

Section 5: Sonar Troubleshooting

83

Section 6: Basic GPS Operations

87

Keyboard

87

Power/lights on and off

88

Main Menu

88

Pages

90

Sonar Page

90

Satellite Status Page

90

Navigation Page

92

Map Page

94

Background map vs. MapCreate map content

96

Resize Window command

98

Basic GPS Quick Reference

100

Find Your Current Position

101

Moving Around the Map: Zoom & Cursor Arrow Keys

101

Selecting Any Map Item With the Cursor

102

Searching

102

Set a Waypoint

104

Create Waypoint at Current Position

105

Create Waypoint on Map

106

Create Waypoint by Entering a Position

106

Navigate To a Waypoint

107

Set Man Overboard (MOB) Waypoint

108

Navigate Back to MOB Waypoint

108

Navigate to Cursor Position on Map

108

Navigate to a Point of Interest

110

Creating and Saving a Trail

110

Displaying a Saved Trail

111

Navigating Trails

112

Visual Trailing

112

Navigate a Trail

112

Navigate a Back Trail

115

Transfer Custom Maps and GPS Data Files

115

Cancel Navigation

118

Section 7: Advanced GPS Operations

119

Find Distance Current Position to Another Location

119

Find Distance From Point to Point

119

Icons

120

Create Icon on Map

120

iii

 

Page 5
Image 5
Eagle Electronics 640C, 640cDF manual Sonar Troubleshooting Basic GPS Operations, Basic GPS Quick Reference 100

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.