Garmin Fishfinder 100 BLUE Owner's Manual
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Garmin Fishfinder 100 BLUE Owner's Manual

Garmin fish finder user manual
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Summary of Contents for Garmin Fishfinder 100 BLUE

  • Page 1 Fishfi nder 100 Blue owner’s manual...

  • Page 3: Introduction

    If you encounter a problem, or just have a question, contact our Product Support Department at 913-397-8200 or 800-800-1020, Monday — Friday 8:00 a.m. to 5:00 p.m. Central Time. Enjoy your new Fishfi nder 100 Blue and once again thank you for choosing GARMIN. Introduction...

  • Page 4: Limited Warranty

    GARMIN Corporation warrants this product to be free from defects in materials and manufacture for one year from the date of purchase. GARMIN will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor.

  • Page 5: Packaging And Accessories

    The Fishfi nder 100 Blue Standard Package Includes: • Fishfi nder 100 Blue • Surface Mount Bracket with Knobs • Power/Data Cable • Owner’ s Manual • Dual Frequency Transom Mount Transducer (with depth/temp)* Optional Dual Frequency Transducers and Accessories:...

  • Page 6: Table Of Contents

    Introduction Table of Contents Introduction... i-vi Customer Service ... i Limited Warranty ... ii Packaging and Accessories... iii Unit Display ... vi Installation ...1-9 Transducers... 1 Transom Mount Installation ... 2 In-hull Installation ... 3 Speed Sensor Installation... 4 Wiring Harness Installation ... 5 Wiring to a Fuse Block ...
  • Page 7 Alarm Tab Fish Alarm ...23 Shallow Water ...24 Deep Water ...24 Battery Voltage ...25 System Tab Contrast ...25 Beeper ...26 NMEA Output...26 Language...26 Calibrations Tab Keel Offset...27 Water Type ...27 Calibrate Speed ...27 Units Tab Depth ...28 Temperature ...28 Speed ...28 Memory Tab Remember...29 Factory Setup ...29...

  • Page 8: Water Depth

    What can the Fishfi nder 100 Blue Display? ENTER SETUP The Fishfi nder 100 Blue is capable of displaying a variety of useful information about the underwater environment. Below are a few things the unit will help you see. Water Depth The unit displays water depth and can provide a warning for shallow or deep-water conditions.

  • Page 9: Installation

    This transducer provides good all-around performance. Other optional dual frequency transducers are available from your local dealer or GARMIN. The transducer transmits sound waves toward the bottom in a cone shape. The wider the cone angle, the larger the coverage area at a given depth.

  • Page 10: Transom Mount Installation

    Proper transducer installation is key to getting the best performance from your new unit. If the transducer lead is too short, extension cables are available from you GARMIN dealer. DO NOT cut the transducer lead or any part of the transducer cable, as this will void your warranty. The cable cannot be spliced and connected to any existing (GARMIN or non- GARMIN) transducer cables.

  • Page 11: In-Hull Installation

    In-Hull Installation To avoid drilling a hole to mount a thru-hull transducer, a transom mount transducer may be used with epoxy inside a boat (also called “shoot- thru-hull” installation). For a transducer to be mounted inside the hull (shoot-thru, not thru-hull), the boat must be fi berglass, no core (contact your boat manufacturer if you are unsure).

  • Page 12: Speed Sensor Installation

    Installation Mounting the Transducer/ Speed Sensor Weight transducer in place Apply twisting motion for at least 24 hours to eliminate any trapped air bubbles Installing the Transducer Adjust the speed sensor so it is parallel with the bottom of the boat. If the speed sensor is not adjusted properly, the sonar may experience degraded speed readings.

  • Page 13: Wiring Harness Installation

    Wiring Harness Installation The Fishfinder 100 Blue comes with a wiring harness that connects the unit to power and the transducer with one easy-to-remove connection. Make sure the wiring harness will reach the unit before beginning installation. If it is necessary to extend the power/data wires, use a wire of compa- rable size and keep your extension as short as possible.

  • Page 14: Installing The Wiring Harness

    Make sure the 2-Amp in-line fuse supplied with the unit is installed. The Fishfi nder 100 Blue can be connected to another piece of NMEA- compatible electronic equipment. If equipped with a capable transducer and speed sensor, the Fishfi nder 100 Blue sends depth, temperature and speed information that could be used by, or displayed on another device.

  • Page 15: Display Installation (Surface Mount)

    Display Installation (Surface Mount) The Fishfi nder 100 Blue can be mounted to a fl at surface using the supplied Surface Mount Bracket. Surface Mounting the Display: 1. Position the Surface Mount Bracket in the desired location. Leave approximately 2” behind the unit for cable clearance.

  • Page 16: Display Installation (Flush Mount)

    Installation Installing the Display Pull bracket down until cam lobe contacts surface Display Installation (Flush Mount) The Fishfi nder 100 can be mounted fl ush against the dash or electron- ics rack that is no more than 1/4” thick. Flush Mounting the Display: 1.

  • Page 17: Testing The Installation

    While it is possible to perform some checks with the boat trailered, the boat should be in the water to properly test the installation. Press the Power button and the Fishfinder 100 Blue should power on. If the unit fails to power on, verify that the wiring adapter is seated properly in the back of the unit, the Red and Black wires are connected to the correct polarity, and the 2-Amp fuse is installed and not blown.

  • Page 18: Unit Operation

    Unit Operation Keypad Functions Arrow Keys The Arrow keys are used to select items on the Adjustment Bar and Setup Menu and to change fi eld data. Enter Key The ENTER key is used to activate/deactivate the Adjustment Bar and Setup Menu data fi...

  • Page 19: Display Information

    Messages and Alarm Icons are displayed along the bottom. The Fishfinder 100 Blue has three levels of display backlighting: Off, Low and High. The backlight is activated by momentarily pressing the Power key. To change the backlight level, press the Power key repeatedly.

  • Page 20: Using The Adjustment Bar

    Unit Operation The Adjustment Bar Current Setting Adjustment List Range Adjustment Using the Adjustment Bar The Adjustment Bar allows direct access to the most commonly changed settings. These include the depth Range, the Zoom setting, and the Gain (sensitivity) of the unit. Place the highlight (white bar) over the desired selection using the RIGHT or LEFT Arrow key, and the current setting will be displayed in the highlight.

  • Page 21: Zoom

    Zoom The Zoom Adjustment is used to quickly select a display zoom scale. To change the Zoom Scale: 1. Highlight ‘Zoom’ on the Adjustment Bar. 2. Using the UP or DOWN Arrow, select the desired display zoom level. When a scale other than ‘No Zoom’ is selected, the Adjustment Bar will display a new selection labeled ‘View.’...

  • Page 22: Gain

    Unit Operation The Adjustment Bar Minimum Gain Gain The Gain Adjustment allows the user to control the sensitivity of the unit’ s receiver. This provides some flexibility in what is seen on the display. To see more detail, increase the receiver sensitivity by selecting a higher gain (+).

  • Page 23: Setup Menu

    SETUP MENU The Setup Menu contains the unit settings that should not require frequent change. The Setup Menu is divided into eight tabs: Chart, Tools, Numbers, Alarms, System, Calibrations, Units, and Memory. Each tab will be described in more detail in this section. To enter and exit the Setup Menu, press the SETUP button on the face of the unit.

  • Page 24: Fish Symbols

    Unit Operation Setup Menu: Chart Tab Fish Symbols All available information will be displayed. — Suspended targets will display as symbols. In this mode, — background information will still be displayed making fi sh identifi cation easier. Same as above with target depth displayed. —...

  • Page 25: Whiteline

    NOTE: When the frequency is set to ‘Dual,’ the appearance of the fi sh symbols will change. Fish returns from the center of the beam will be black, but the fi sh returns from the edges of the beam will be clear. Whiteline ‘Whiteline’...

  • Page 26: Scale

    Unit Operation Setup Menu: Chart Tab Scale — ‘Overlay’ Scale The depth ‘Scale’ is displayed vertically along the right side of the chart. The depth ‘Scale’ can be configured to display in four different modes: as an ‘Overlay,’ in the ‘Corners,’ with ‘Basic’ or ‘No Scale.’ To change the Scale Setting: 1.

  • Page 27: Tools Tab

    Simulator The ‘Simulator’ tool allows you to select a simulated transducer type for use with the Fishfinder 100 Blue’ s built-in display simulator. These choices allow the simulator to more accurately depict actual operation of the unit. For details on using the simulator, see page 35.

  • Page 28: Numbers Tab

    Unit Operation Setup Menu: Tools/Numbers Tabs Noise Reject Manual Adjustment Slider Normal Numbers Large Numbers Noise Reject (continued) To change the Noise Reject Setting: 1. Highlight the ‘Tools’ tab on the Setup Menu. 2. Highlight the ‘Noise Reject’ selection fi eld and press ENTER. 3.

  • Page 29: Battery Voltage

    Battery Volts The Fishfinder 100 Blue can display the current battery voltage on the chart. To show or hide the Battery Volts display fi eld: 1. Highlight the ‘Num’ tab on the Setup Menu. 2. Highlight the ‘Battery Volts’ selection fi eld and press ENTER.

  • Page 30: Speed

    Depth Number Selections Speed The Fishfinder 100 Blue can display the boat’ s ‘Speed’ Over Water when equipped with a speed sensor. When set to ‘Auto,’ the unit will automatically sense when a capable sensor is connected and display the boat’...

  • Page 31: Alarm Tab

    Alarm Tab The ‘Alarm’ tab allows you to activate and configure the four alarms available in the Fishfinder 100 Blue. To access the ‘Alarm’ tab, place the highlight over it using the arrow keys. See page 37 for alarm icons and messages.

  • Page 32: Shallow Water

    Unit Operation Setup Menu: Alarms Tab Shallow Water Alarm Deep Water Alarm Shallow Water The ‘Shallow Water’ Alarm can be set to sound a warning at a depth determined by the user. The alarm must be activated before the unit will sound a warning.

  • Page 33: Battery Voltage

    Battery Volts The ‘Battery Volts’ Alarm can be set to warn you when the battery reaches a critical state of discharge. To activate/deactivate the Battery Volts Alarm: 1. Highlight the ‘Alarm’ tab on the Setup Menu. 2. Highlight the ‘Battery Volts’ checkbox. 3.

  • Page 34: Beeper

    3. Choose ‘Off,’ ‘Alarms Only,’ or ‘Key, Alarm,’ then press ENTER to accept the setting. NMEA Output The Fishfi nder 100 Blue has the ability to output information about Depth, Speed, and Water Temp for display on another NMEA-compatible device.

  • Page 35: Calibrations Tab

    Calibrations Tab The ‘Cal’ tab contains the ‘Keel Offset’ and ‘Water Type’ setups, and a ‘Calibrate Speed’ function for use when a speed sensor is installed. Keel Offset The ‘Keel Offset’ fi eld allows the user to offset the depth reading for a keel or for the draw on a larger vessel.

  • Page 36: Units Tab

    Unit Operation Setup Menu: Units Tab Depth Selections Temperature Selections Speed Selections Units Tab The ‘Units’ tab contains settings for ‘Depth,’ ‘Temperature’ and ‘Speed.’ To access the ‘Units’ tab, use the arrow keys to highlight it. Depth The ‘Depth’ fi eld can be confi gured to display in Feet (ft), Meters (mt) or Fathoms (fa).

  • Page 37: Unit Operation

    ‘Memory’ tab, use the arrow keys to highlight it. Remember The Fishfi nder 100 Blue can be set to remember it’ s settings each time you power it on. You can set it to remember the settings in the Setup Menu (‘Setup Only’) or the unit’...

  • Page 38: On The Water

    This section is intended to help the novice user gain some understanding of how the Fishfinder 100 Blue operates and how it can help improve their fishing productivity. To understand what the unit is displaying, it is important to have a general knowledge of how the unit works and how it determines what to display.

  • Page 39: Transducer Coverage

    10° cone angle (200kHz frequency) approximately covers the area of a 6 foot diameter circle at a 30 foot depth. When using the Fishfinder 100 Blue in ‘Dual’ frequency mode, the unit transmits both 50kHz and 200kHz signals at the same time. The ‘Dual’...

  • Page 40: Understanding The Chart

    On the Water On the Water Understanding the Chart Remember that the Fishfi nder displays a 2D picture of the underwater environment. The fi sh and tree could be located anywhere in the coverage area produced by the sonar cone at the object’s indicated depth.

  • Page 41: Whiteline

    Whiteline The Fishfi nder 100 Blue can help you to determine if the bottom is hard or soft. When the sonar soundwaves are refl ected back by the bottom, a hard bottom will return a stronger signal than a soft bottom. The stronger the bottom return, the wider the bottom layer is displayed.

  • Page 42: Thermoclines

    One of the unique features offered by GARMIN is See-Thru technology. A benefit of See-Thru technology is that it allows the Fishfinder 100 Blue to see fish inside thermoclines.

  • Page 43: Simulator Mode

    Fishfinder 100 Blue can be controlled just as if it were on the water. Using simulator mode allows the user to practice and learn the operation of the unit at home rather than on the water.

  • Page 44: Appendix A: Specifi Cations

    On the Water Appendix A Specifi cations Physical Case: Fully gasketed, high-impact plastic alloy Display: 3.3” x 2.0” (8.3 x 5 cm) 160 H x 100 W pixels, FSTN LCD with amber LED backlighting Size: 4.93” H x 6.3” W x 2.7” D (12.5 x 13.5 x 6.9 cm) Weight: 13 oz.

  • Page 45: Appendix B: Alarm Messages And Icons

    Alarm Messages and Icons The Fishfinder 100 Blue displays a message when an alarm is tripped. To clear the message, press the ENTER key. If the ENTER key is not pressed, the unit will automatically remove most messages after 10 seconds and display a reminder icon in the lower left corner of the chart until the alarm is no longer valid.

  • Page 46: Appendix C: Index

    On the Water Index Accessories ...iii Adjustment Bar ... 12-14 Alarm Messages...37 Alarm Tab... 23-25, 37 Arrow Keys...10 Battery...37 Battery Voltage Alarm ...25 Battery Voltage Display...21 Beeper ...26 Bottom Structure... vi, 32-33 Calibrate Speed ...27 Calibrations Tab ...27 Chart..32-34 Chart Tab ...
  • Page 47 Keel Offset...27 Keypad...10 Language...26 Limited Warranty ...ii Memory Tab ...29 Messages ...37 Mounting the Display... 7-8 Mounting the Speed Sensor...4 Mounting the Transducer ... 2-4 NMEA Output...26 Noise Reject ... 19-20 Number Size ...20 Numbers Tab... 20-23 Operation...30 Packaging...iii Power Key ...10 Product Registration ...i Range Adjustment ...12 Remember Settings...29...
  • Page 48 On the Water Index Tools Tab...19-20 Transducers... 1, 31, 35 Transom Mount Installation ... 2 Understanding Sonar... 30 Understanding the Chart...32-34 Units Tab... 28 View Adjustment... 13 Warranty ... ii Water Depth... vi, 28 Water Temperature... vi, 28 Water Type ... 27 Whiteline ...

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