Lowrance electronic M68C IceMachine - Manual (Page 3)

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Table of Contents
Sec. 1: Read Me First! .............................................................. 1
Capabilities and Specifications: M68 ............................................ 3
How your Sonar Works................................................................. 4
How your GPS Works ................................................................... 5
Introduction to GPS and WAAS................................................... 5
How to Use this Manual: Typographical Conventions................ 7
Sec. 2: Installation & Accessories .......................................... 9
Preparations.................................................................................. 9
Transducer Installation................................................................ 9
Recommended Tools and Supplies ......................................... 10
Selecting a Transducer Location................................................ 10
How Low Should You Go?....................................................... 11
Shoot-Thru-Hull vs. Transom Mounting ............................... 12
Transom Transducer Assembly and Mounting ......................... 13
Trolling Motor Bracket Installation........................................... 16
Transducer Orientation and Fish Arches .................................. 17
Shoot-Thru-Hull Preparation and Installation ......................... 18
Power and Cable Connections .................................................... 22
Mounting the Sonar Unit: In-Dash or Bracket ......................... 23
Portable Sonar Installation ........................................................ 27
Portable Transducer Assembly .............................................. 29
Sec. 3: Basic Sonar Operation.............................................. 31
Keyboard Basics.......................................................................... 31
Memory........................................................................................ 32
Menus .......................................................................................... 32
Main Menu .............................................................................. 32
Sonar Menu ............................................................................. 33
Pages ........................................................................................... 35
Basic Sonar Quick Reference ............................................... 37
Sonar Operations ........................................................................ 38
Fish Symbols vs. Full Sonar Chart ........................................ 40
Other Free Training Aids ....................................................... 41
Sec. 4: Sonar Options & Other Features ........................... 43
ASP
 (Advanced Signal Processing)......................................... 43
Alarms ......................................................................................... 44
Depth Alarms .......................................................................... 44
Zone Alarm .............................................................................. 45
Fish Alarm............................................................................... 46
Chart Speed................................................................................. 47
ColorLine
.................................................................................. 47
Depth Cursor............................................................................... 49
Depth Range - Automatic ........................................................... 49