Humminbird HELIX 12® CHIRP MEGA DI+ GPS G4N Product Description

Humminbird HELIX 12® CHIRP MEGA DI+ GPS G4N Marine Fishfinder & GPS Combo

Experience unmatched underwater clarity and precision navigation with the Humminbird HELIX 12® CHIRP MEGA DI+ GPS G4N. This professional-grade fishfinder combines advanced MEGA Down Imaging+ technology, Dual Spectrum CHIRP sonar, and comprehensive GPS chartplotting in a rugged 12.1" display designed for serious anglers and commercial marine operations.

Revolutionary Sonar Technology for Superior Fish Detection

MEGA Down Imaging+ Technology

Unlock unprecedented underwater clarity with 20% more detail and 60% more depth capability than standard MEGA Down Imaging. This cutting-edge technology delivers crystal-clear imaging down to 200 feet below your vessel, revealing fish and structure with photographic precision that traditional sonar cannot match.

Advanced Dual Spectrum CHIRP Sonar

Powered by proprietary Low-Q CHIRP transducer technology, the dual spectrum system provides exceptional target separation and fish arch definition. Choose Wide Mode for maximum coverage or Narrow Mode for focusing on the finest detail, ensuring you never miss fish holding near structure or suspended in tight schools.

Professional GPS Navigation System

Navigate with confidence using the integrated GPS system and comprehensive Humminbird Basemap featuring over 10,000 lakes plus full continental U.S. coastal coverage. Accurately mark waypoints, track depth contours, and identify critical navigation aids including buoys, day markers, hazards, and marinas.

Complete Technical Specifications

Display & Interface

• Display Size: 12.1" LCD with 1280 x 800 pixel resolution
• Control Interface: Keypad control with soft-key navigation
• Overall Dimensions: 14.86" L × 8.83" H × 4.25" D
• Marine Rating: Fully waterproof construction

Sonar Capabilities

• Sonar Technology: Dual Spectrum CHIRP with MEGA Down Imaging+
• Imaging Depth: Down to 200 feet with enhanced clarity
• Target Separation: Superior fish arch definition and structure detail
• Transducer: XM-9-HW-MDI-T transom mount included

Navigation & Memory

• GPS System: High-precision internal GPS receiver
• Waypoint Storage: Up to 2,750 waypoints
• Chart Storage: Micro SD card expandable
• AutoChart Live: 8 hours built-in recording capacity

Advanced Marine Networking & Connectivity

One-Boat Network™ Integration

Seamlessly connect with Minn Kota trolling motors, Cannon downriggers, and other Humminbird devices for unified boat control and enhanced fishing capabilities. Share sonar data across multiple displays and control compatible accessories directly from the HELIX screen.

Professional Marine Communication

• Ethernet Networking: High-speed connection for multiple fishfinder integration
• NMEA 2000®: Industry-standard marine electronics communication
• Bluetooth® Wireless: Connect to Talon/Raptor anchors and receive software updates
• Wi-Fi Capability: Wireless data sharing and mobile app connectivity

Comprehensive Chart Compatibility

Included Mapping

The unit comes preloaded with Humminbird Basemap covering thousands of lakes and coastal areas. Create custom maps in real-time using AutoChart Live technology, which maps depth contours, bottom hardness, and vegetation as you navigate.

Optional Premium Charts

• LakeMaster®: Detailed contour mapping with highlighted depth ranges
• CoastMaster™: Comprehensive coastal navigation charts
• Navionics®: Compatible with popular third-party chart options
• SmartStrike Cards: Advanced fish pattern analysis and location algorithms

Complete Installation Package

What's Included:

• HELIX 12 CHIRP MEGA DI+ GPS G4N control head
• XM-9-HW-MDI-T transom mount transducer with mounting hardware
• Gimbal mounting bracket for secure installation
• Marine-grade power cable
• Complete mounting hardware kit

Professional Installation Considerations

This fishfinder requires proper marine electrical installation following ABYC standards. Ensure adequate power supply (12V DC) and consider professional installation for optimal transducer placement and NMEA 2000 network integration.

Ideal Marine Applications

Sport Fishing Vessels

Perfect for bass boats, walleye rigs, and multi-species fishing where precision fish location and structure mapping are essential for tournament success.

Recreational Boating

Ideal for cruisers and pontoon boats requiring reliable navigation, depth monitoring, and fish finding capabilities for weekend adventures.

Commercial Applications

Suitable for guide boats, charter vessels, and light commercial operations needing professional-grade sonar and navigation equipment.

Comprehensive Warranty Coverage

Protected by Humminbird's 2-Year Limited Warranty covering manufacturing defects and ensuring long-term reliability in marine environments. This warranty demonstrates Humminbird's confidence in their professional-grade marine electronics.

Technical Support Resources

Access comprehensive documentation, installation guides, and technical support through Humminbird's extensive dealer network and online resources. NMEA and ABYC certified technicians are available for complex installations.

Frequently Asked Questions

What's the difference between MEGA Down Imaging+ and standard Down Imaging?

MEGA Down Imaging+ provides 20% more detail and 60% more depth capability than standard MEGA Down Imaging. It operates at higher frequencies (1.2 MHz) compared to traditional 455 kHz systems, delivering photographic-quality underwater images down to 200 feet with exceptional clarity and target separation.

Can this unit connect to my Minn Kota trolling motor?

Yes, the HELIX 12 G4N is fully compatible with the One-Boat Network™, allowing seamless integration with Minn Kota i-Pilot Link trolling motors, Cannon downriggers, and Talon/Raptor shallow water anchors through Ethernet and Bluetooth connectivity.

What charts work with this fishfinder?

The unit includes Humminbird Basemap with 10,000+ lakes and coastal coverage. It's also compatible with LakeMaster®, CoastMaster™, SmartStrike, and Navionics® chart options. The micro SD card slot allows for easy chart updates and custom AutoChart Live mapping.

Is professional installation required?

While experienced DIY installers can handle basic installation, professional installation is recommended for optimal transducer placement, NMEA 2000 network integration, and ensuring compliance with ABYC marine electrical standards. Proper installation maximizes sonar performance and system reliability.

What's the difference between this unit and the CHO version?

This standard version (411440-1) includes the XM-9-HW-MDI-T transom mount transducer. The CHO (Control Head Only) version (411440-1CHO) doesn't include a transducer, making it ideal for connecting to existing Humminbird networks or Minn Kota motors with built-in MEGA Imaging transducers.

The HELIX 12 CHIRP MDI+ GPS G4N features a 12.1 Inch display, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 12 standard features such as AutoChart Live, Wi-Fi and NMEA 2000 (R), in addition to Bluetooth (R) and Ethernet networking for compatibility with the One-Boat Network ™ family of products from Humminbird, Minn Kota and Cannon.

Humminbird 4114401 Attributes

• Display Size: 12.1 Inch LCD
• Display Resolution: 1280 X 800 Pixels
• Overall Dimensions: 14.86 Inch Length X 8.83 Inch Height X 4-1/4 Inch Depth
• Sonar Compatibility: Dual Spectrum CHIRP Sonar
• With Built-In GPS: Yes
• Used To: Use To Find Fish And Identify Buoys/ Day Markers/ Hazards/ Marinas/ Contours/ Depth Markers
• Interface: Keypad
• Waterproof: Yes
• Point Of Interest: 2750 Waypoints
• SD Card Storage: Micro SD Card

Humminbird 4114401 Features & Benefits

• MEGA Live Delivers The Clarity And Detail Of MEGA Imaging In Live-Action, Allowing Anglers To See Fish And Structure In Real-Time
• MEGA Down Imaging Displays 3X The Output Of Standard Down Imaging
• CHIRP Stands For “Compressed High Intensity Radar Pulse”: By Covering A Wide Range Of Frequencies, CHIRP Produces More Accurate, More Detailed Returns Of Fish, Structure And The Bottom
• Dual Spectrum CHIRP Sonar: By Covering A Wide Range Of Frequencies, CHIRP Produces More Accurate, More Detailed Returns Of Fish, Structure And The Bottom
• Precision GPS Provides An Accurate Position Fix, Meaning More Accurate Waypoints And Boat Positioning For Better Fishing
• Humminbird Basemap: Based On Freshwater Data From LakeMaster And NOAA, These Maps Provide A Clear View Of Underwater Terrain
• LakeMaster Lake Maps Features Unrivaled, Easy-To-Read Contours, Highlighted Depth Ranges, Scrollable Lake Lists And More
• Maps Features All Of The Of LakeMaster With One Key Addition: Aerial Photography Of High Definition Lakes, Providing Visibility To Docks, Buildings, And Structure
• SmartStrike Cards Combine High Definition LakeMaster Lake Map Data And Extensive Search Algorithms To Help You Pattern And Locate Fish At Any Time Of The Year
• Limited 2 Year Warranty

Humminbird 4114401 Installation Instructions

• HUM_productmanual_HELIX_OPSTART_532403E.pdf
• HUM_productmanual_IG_HLX_9-10-12_532405.pdf
• HUM_productmanual_IG_XM_Fixed_532508.pdf
• HUM_productmanual_OPS_HELIX_SRS_532509E.pdf

Humminbird 4114401 Warranties

• Humminbird 2-Year Limited Warranty.pdf

Humminbird 4114401 Technical Bulletins

• HUM_productmanual_Transducer_RG_532651E.pdf

HELIX 12® CHIRP MEGA DI+ GPS G4N

The HELIX 12 CHIRP MDI+ GPS G4N features a 12.1" display, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 12 includes standard features such as AutoChart Live, Wi-Fi and NMEA 2000®, in addition to Bluetooth® and Ethernet networking for compatibility with the One-Boat Network™ family of products from Humminbird, Minn Kota and Cannon. 

Features:

• Keypad control: Master HELIX at the touch of a button. Access the preloaded views from the user-friendly menu system, operated by soft key controls that allow you to reliably operate your fish finder in any condition.
• MEGA Down Imaging+: Get unprecedented underwater clarity with Down Imaging coverage down to 200 feet below your boat. You'll unlock more fish and structure with 20% more detail and 60% more depth capability than MEGA Down Imaging sonar.
• Dual Spectrum CHIRP sonar: Before you cast, know what's down there thanks to highly-detailed fish arches and a clear view of fish-holding structure and the bottom. Powered by our proprietary, Low-Q CHIRP transducer, Dual Spectrum offers two ways to search; Wide Mode for maximum coverage and Narrow Mode for focusing on the slightest detail.
• Internal GPS and Humminbird Basemap: Our enhanced basemap provides you with a clear view of underwater terrain and surrounding points of interest so you can fish and navigate with total confidence. Identify buoys, day markers, hazards, marinas, contours, depth markers and much, much more. Includes charts of more than 10,000 lakes, plus coastal coverage for the continental U.S.
• Premium Chart Compatible: Humminbird provides the most complete offering of premium chart options to anglers everywhere. Get a complete view of the world below with optional charts from Humminbird's LakeMaster® and CoastMaster™ products, as well as your choice of compatible Navionics® charts. 
• AutoChart Live: Create real-time maps of your fishing spots, with access to patented Humminbird® LakeMaster® features. Map depth contours, bottom hardness and vegetation as you drive your boat.  Comes standard with eight (8) hours of built-in recording time and is compatible with AutoChart Zero Line SD cards for virtually-endless AutoChart Live mapping capacity.
• One-Boat Network Compatible: Many Humminbird models seamlessly integrate and communicate with Minn Kota and Cannon products to unlock more features and capabilities for anglers everywhere. Make the more of your time on the water with the exclusive boat control and fish-catching features of the One-Boat Network. 
• Ethernet Networking: High-speed Ethernet allows you to build a powerful, professional-grade fishing system. Easily connect multiple fish finders, or upgrade to add-on technologies like Minn Kota i-Pilot Link and Humminbird CHIRP Radar.
• Bluetooth: Take control right from the screen of your Humminbird with wireless communication to compatible Talon and Raptor shallow water anchors, as well as Cannon Optimum downriggers. Additional features include wireless software updates from the Humminbird FishSmart App and display of smart phone notifications on your Humminbird. 
• NMEA 2000 networking built-in: Connect an accessory NMEA 2000 network to your control head for even more information; from boat performance to weather and water conditions, make sense of it all with NMEA 2000 networking.
• Includes control head, transom mount transducer and mounting hardware, power cable, gimbal mounting bracket.
• 2-Year Limited Warranty

Keyboard control: You can master HELIX by touching the buttons. Access the pre-loaded view from the user-friendly menu system, which is operated by soft key controls, allowing you to reliably operate the fish finder in any situation. MEGA Downward Imaging+: Downward imaging coverage is as low as 200 feet below the ship, achieving unprecedented underwater clarity. Compared with MEGA Down Imaging sonar, you can release more fish and buildings, increase details by 20%, and increase depth capability by 60%. Dual Spectrum CHIRP sonar: Before the projection, thanks to the highly detailed fish arch and the clear line of sight of the fish structure and bottom, I knew where I was going. With the support of our proprietary Low-Q CHIRP sensor, Dual Spectrum provides two search methods: the widescreen mode can provide the largest coverage, and the narrowscreen mode can focus on the most subtle details. Bluetooth: Through wireless communication, compatible Talon and Raptor shallow water anchors and Cannon Optimum drop brackets can be directly controlled from the Humminbird screen. Other features include wireless software updates in the Humminbird FishSmart app, and the ability to display smartphone notifications on Humminbird. Built-in NMEA 2000 network: Connect the accessory NMEA 2000 network to your control head to get more information; from ship performance to weather and water conditions, you can make full use of it with the NMEA 2000 network.

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