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Table of Contents
Sec. 1: Read Me First! ...............................................................1
Capabilities and Specifications: X125, X126DF, X135, X136DF.. 2
How Sonar Works ......................................................................... 3
How to Use this Manual: Typographical Conventions................ 4
Sec. 2: Installation & Accessories ..........................................7
Preparations..................................................................................7
Transducer Installation................................................................7
Recommended Tools and Supplies........................................... 8
Selecting a Transducer Location..................................................8
How Low Should You Go?......................................................... 9
Shoot-Thru-Hull vs. Transom Mounting ...................................10
Transom Transducer Assembly and Mounting .........................10
Trolling Motor Bracket Installation (Single-Frequency only)..16
Transducer Orientation and Fish Arches.................................. 17
Shoot-Thru-Hull Preparation and Installation......................... 17
Speed/Temperature Sensors.................................................20
Sensor Chart ...............................................................................21
Optional Speed Sensor Installation .......................................22
Power Connections......................................................................23
Mounting the Unit: Bracket, In-Dash or Portable.................... 25
Face Cover...................................................................................29
Sec. 3: Basic Sonar Operation...............................................31
Keyboard .....................................................................................31
Power/Lights (Turn Unit On and Off) .......................................32
Menus.......................................................................................... 32
Main Menu .............................................................................. 32
Sonar Menu.............................................................................34
Pages ...........................................................................................35
Basic Sonar Quick Reference...............................................38
Sonar Operations........................................................................ 39
Fish Symbols vs. Full Sonar Chart........................................ 41
Other Free Training Aids....................................................... 42
Sec. 4: Sonar Options & Other Features ............................43
ASP (Advanced Signal Processing).........................................43
Alarms......................................................................................... 44
Depth Alarms..........................................................................44
Zone Alarm..............................................................................45
Fish Alarm............................................................................... 46
Brightness ................................................................................... 46
Calibrate Speed...........................................................................46
Chart Speed................................................................................. 47
Contrast....................................................................................... 48