Lowrance HOOK-3x Fishfinder User Manual

Declarations of Conformity

This document provides information regarding the Lowrance HOOK-3x fishfinder.

Copyright © 2015 Navico. All rights reserved. Lowrance® and Navico® are registered trademarks of Navico.

Navico reserves the right to modify its policies, regulations, and offers at any time without prior notice. All features and specifications are subject to change without notice.

Declarations of Conformity: Lowrance HOOK-3x

• CE compliant with Directive 2004/108/EC concerning electromagnetic compatibility.
• Compliant with Level 2 requirements of the radio communications standard (electromagnetic compatibility) of 2008.

The relevant declaration of conformity is available on the Navico website, in the documentation section for this model: http://www.lowrance.com.

⚠️ WARNING: The owner is solely responsible for installing and using this equipment and transducers in a manner that does not cause accidents, injury to persons, or damage to property. Adhere to safe navigation practices.

Introduction

Controls of the Unit

• POWER/ILLUMINATION: Controls the backlight level and turns the unit on/off.
• KEYPAD: Controls the cursor and selects menu items.
• FREQUENCY: Adjusts the transducer frequency.
• MENU: Opens page and settings menus.
• ENTER: Confirms menu selections.
• ZOOM KEYS: [+] zooms in; [-] zooms out.

Getting Started

Powering On/Off the Unit

To turn the unit on or off, press and hold the POWER/ILLUMINATION button for three seconds.

Backlight Adjustment

Press the POWER/ILLUMINATION button to cycle through the unit's 11 backlight levels.

Silent Mode

Select Audio from the Settings menu to enable or disable the unit's audio.

Basic Operation

Accessing Menu Items

The keypad and the ENTER button are used to select menu items and open submenus. Use the keypad to select the desired item, then press ENTER to open the corresponding submenu or dialog box.

Note: Press the MENU button to exit menus.

Dialog Boxes

Dialog boxes are used to enter data or display information to the user. Depending on the input type, different methods are used to confirm, cancel, or close the dialog box.

Cursor

The keypad allows you to move the cursor on the screen.

Restore Settings

Resets the unit to its default settings. Access this function via the Settings menu.

Press ENTER to restore default values or MENU to cancel.

Sonar Operation

Sonar Menu

The Sonar Menu provides access to various sonar settings:

• Sensitivity
• Scale
• Frequency
• Elim. Interference
• Pulse Speed
• Color Line
• Fish ID
• Overlay Data
• Settings

Sonar Page

Displays sonar data including depth, temperature, frequency, and fish arches.

Sensitivity

Controls the level of detail shown on the screen. Excessive detail can cause clutter, while too low sensitivity may prevent weak echoes from being displayed.

• Auto: Default setting, adapts to most conditions, reducing the need for manual adjustments.
• Manual: Allows complete control over sensitivity settings.
• Adjust: Provides sensitivity control, which is complete in Manual mode and limited in Auto mode.

Color Line

Separates strong sonar echoes from weak ones, making it easier to distinguish fish or structures from the bottom. Strong returns appear as wide, light yellow areas, while weak signals appear as narrow, reddish-blue areas.

Scale

Selects the visible water depth on the screen. The unit may fail to get a bottom signal if the selected range indicates water that is too shallow.

Frequency

Used to select the unit's sonar frequency. This unit supports 83 kHz and 200 kHz frequencies. The frequency can also be adjusted using the corresponding button.

Fish ID

Displays fish echoes with a fish symbol instead of arches. Note: Fish ID is not the most accurate method for detecting fish, as it may display suspended structures and impurities with a fish symbol.

Elim. Interference

Utilizes advanced signal processing to filter and exclude interference effects caused by boat systems, water conditions, engine starting systems, and more.

Pulse Speed

Controls the speed of the sonar pulse transmitted by the transducer. Adjustments to pulse speed can help reduce interference generated by other transducers. The default speed is optimized for most fishing conditions and rarely needs adjustment.

Overlay Data

Select Overlay Data to add Depth, Temperature, and Voltage information to the screen. You can also choose the size of the overlay.

Settings

Settings Menu

Access various settings for the unit:

• Alarms
• Units of Measure
• Backlight
• Audio
• Language
• Simulator
• Restore Settings
• About

Alarms

Activate alarms and set alarm threshold values.

Entering Threshold Values

1. Select "Set Value".
2. Use the keypad [UP]/[DOWN] to increase or decrease the numerical value.
3. Use the keypad [LEFT]/[RIGHT] to select the preceding or next digit.

Units of Measure

Allows selection of the unit of measure for depth and temperature (Metric or USA standard decimal system).

Backlight

Adjusts the backlight brightness. This unit features 11 backlight levels. You can also adjust the backlight using the POWER/ILLUMINATION button.

Audio

Turns the unit's audio on or off.

Language

Select the language used in menus, dialog boxes, and text fields. The unit restarts after a language change.

Simulator

Simulates sonar activity, allowing you to become familiar with the device before using it on the water.

Restore Settings

Resets the unit to its default factory settings. Press ENTER to restore default values or MENU to cancel.

About

Displays information about the unit's software.

Specifications

General Information

Power

Sonar

Contact Information

Customer Support

• AMER: 800-628-4487
• EMEA: +44 1794 51 0010
• APAC: 1300 628426

Ordering Accessories

• US: http://store.navico.com
• Other Nations: Refer to your local dealer or distributor.

Visit Our Website

For further regional support information, visit: www.lowrance.com/technicalsupport