Eagle 642c df igps Operating Guide

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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? .......................................................... 16
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
GPS Internal Antenna................................................................ 32
NMEA Cable Connections .......................................................... 32
NMEA Wiring ......................................................................... 32
Mounting the Unit: Bracket or Portable.................................... 33
MMC or SD Card Memory Card Installation ............................ 36
Other Accessories........................................................................ 37
Section 3: Basic Sonar Operation ........................................ 39
Keyboard ..................................................................................... 39
Power/lights on and off ............................................................... 40
Main Menu .................................................................................. 40