Lowrance electronic M56 - Manual (Page 3)

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Table of Contents
Sec. 1: Read Me First! .................................................................... 1
Capabilities and Specifications: M56.................................................. 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
Depth Cursor..................................................................................... 47
Depth Range - Automatic ................................................................. 48
Depth Range - Manual ..................................................................... 49
Depth Range - Upper and Lower Limits ......................................... 49
FasTrack
 ........................................................................................ 51