Garmin 100 Thermoclines

On the Water

Understanding the Chart

Thermoclines

One of the unique features offered by GARMIN is See-Thru™ technology. See-Thru™ technology allows the Fishfinder 100 to see through thermoclines and helps locate fish where they live, and fish love the thermocline.

A rough definition of a thermocline is a break in water where the water temperature changes faster than the water above it. The thermocline usually displays as a gray level as shown below.

Thermocline

Contents

Page Page Introduction Customer Service Product Registration Limited Warranty Packaging and Accessories Table of Contents Introduction Installation Unit Operation Using the Adjustment Bar On the Water Appendix What can the Fishfinder Display Transducers Installation Selecting a Transducer Mounting the Transducer Transom Mount Installation In-hullInstallation Selecting a Location Testing the Location Installing the Transducer Trolling Motor Installation Mounting the Transducer: Wiring Harness Installation Wiring to a Fuse Block Installing the Wiring Harness: Installing the Wiring Harness Wiring Harness Installation (continued) Display Installation (Surface Mount) Surface Mounting the Display: Installing the Display Display Installation (Flush Mount) Flush Mounting the Display: Testing the Installation Installation Testing the Installation Unit Operation Keypad Function Enter Setup Power Describing The Display Using the Adjustment Bar Zoom To change the zoom scale: DOWN View To change the view: Gain To change the Gain: Setup Menu Chart To Change the Whiteline Setting: Scroll Speed To Adjust the Scroll Speed: Scale To Change the Scale Setting: Tools Flasher To Turn the Graphic Flasher On and Off: Simulator Numbers To Set the Temperature Display Field: To Set the Speed Display Field: Alarms Deep Water Activating/Deactivating the Deep Water Alarm: Setting the Deep Water Alarm Depth: Setting the Battery Volts Alarm: System Calibration Units Memory Understanding Sonar Transducer Coverage Transducer Coverage Understanding the Chart Understanding the Chart Page Thermoclines Simulator Mode To Select a Specific Transducer: Simulator Mode Appendix A Specifications Physical Power Performance Alarm Messages and Icons Appendix B Messages and Alarms Fishfinder 100 Portable Batteries Installing the D-CellBatteries: Installing a Gel Cell Battery: Appendix D Index