Humminbird

Humminbird HELIX 8® CHIRP MEGA DI GPS G4N CHO Display Only

SKU: 85738 · UPC: 082324054945 · MPN: 411340-1CHO
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02 · Overview

Humminbird HELIX 8® CHIRP MEGA DI GPS G4N CHO Display Only — Product description

Unlock crystal-clear underwater views and pinpoint navigation on your next fishing trip with the versatile Humminbird HELIX 8 CHIRP MEGA DI GPS G4N CHO. This control head-only unit delivers an 8-inch high-resolution display packed with advanced sonar capabilities, letting serious anglers customize their setup for peak performance. Whether you're pairing it with a Minn Kota trolling motor's built-in MEGA Imaging or expanding an existing network, its flexibility stands out for boaters who demand precision without compromise.

Imagine spotting fish and structure in stunning detail before dropping a line— that's the edge this unit provides through its powerful imaging tech and seamless connectivity. Built tough for real-world waters, it thrives in rough conditions, helping you focus on the catch rather than the gear.

Standout Sonar and Imaging Power

  • MEGA Down Imaging: Dive deeper into details with coverage up to 125 feet below your boat, revealing 3x more fish and structure than traditional Down Imaging. Perfect for scanning tight spots like drop-offs or weed beds where big ones hide.
  • Dual Spectrum CHIRP Sonar: Switch between wide coverage for scouting vast areas and narrow focus for razor-sharp arches and bottom profiles. This dual-mode setup uncovers fish-holding hotspots with unmatched accuracy, adapting to your fishing style on the fly.
  • MEGA Live Imaging: Watch the action unfold in real-time, tracking fish movement and bait schools as they happen. It's like having a live underwater camera, transforming how you approach structure fishing.

Navigation and Mapping Excellence

  • Built-in GPS and Humminbird Basemap: Plot 2,750 waypoints with confidence across over 10,000 lakes and coastal U.S. waters. Spot hazards, marinas, and contours effortlessly, so you navigate safer and fish smarter.
  • AutoChart Live: Map your own custom contours, hardness, and vegetation in real time while on the water. With 8 hours of onboard recording and expandable MicroSD storage, build personalized charts that give you an edge season after season.
  • Premium Chart Ready: Enhance your view with LakeMaster, CoastMaster, or Navionics overlays for high-def lake data, aerial imagery, and SmartStrike patterns tailored to seasonal fish behavior.

Seamless Connectivity for the Ultimate Rig

Elevate your boat's electronics with built-in Wi-Fi, Bluetooth, Ethernet, and NMEA 2000 support. Sync with Minn Kota i-Pilot Link for spot-on trolling, control Raptor anchors wirelessly, or share data across multiple units. It's the heart of the One-Boat Network, integrating Humminbird, Minn Kota, and Cannon gear for effortless command from one screen.

  • Keypad Control: Intuitive buttons and soft keys keep you in charge, even with wet hands or gloves—reliable operation in any weather.
  • Networking Options: Daisy-chain fish finders, add radar, AIS, or MEGA 360 Imaging to create a pro-level system that grows with your needs.

Built for the Long Haul

Housed in a waterproof, rugged frame measuring 12" x 7" x 4.13" with a brilliant 1024 x 600 pixel display, this 8-inch powerhouse resists glare and stands up to harsh marine environments. The CHO design means no bundled transducer—you choose the perfect match, from high-power 1kW options to trolling motor integrations, saving weight and simplifying installs.

Pro Tips for Getting Started

Mount the gimbal bracket for quick access, connect the power cable securely, and pair your transducer via Ethernet for instant sonar feeds. Use the FishSmart app over Bluetooth for updates and notifications without leaving the helm. Anglers upgrading from older Helix models rave about the brighter screen and faster mapping—ideal for tournament pros chasing every advantage.

Pair it with a low-Q CHIRP transducer for optimal Dual Spectrum performance, or go MEGA for side/down views that reveal hidden gems. In shallow bays, leverage wide CHIRP to cover more ground; switch to narrow in deep water for precision.

What's in the Box

  • Control head unit
  • Power cable
  • Gimbal mounting bracket

Frequently Asked Questions

What makes the CHO model different from bundled Helix units?

The Control Head Only version skips the transducer, letting you select or integrate with existing ones like Minn Kota's built-in MEGA Imaging. This flexibility suits custom rigs and networked boats perfectly.

How deep does MEGA Down Imaging reach?

It provides clear images down to 125 feet, showing fine details like individual fish and subtle structure—three times sharper than standard Down Imaging.

Can I connect this to other Humminbird products?

Yes, Ethernet and NMEA 2000 enable sharing sonar data across units, plus Bluetooth for anchors and Wi-Fi for app integration in the One-Boat Network ecosystem.

Does it support custom mapping?

AutoChart Live lets you create real-time maps of depth, hardness, and vegetation, with MicroSD expansion for unlimited storage via Zero Line cards.

Is the display readable in sunlight?

The 8-inch 1024x600 LCD is optimized for brightness and anti-glare, ensuring vivid views even on the sunniest days.

What charts come preloaded?

Humminbird Basemap covers 10,000+ lakes and U.S. coasts with contours, POIs, and navigation aids—ready to upgrade with premium options.

The HELIX 8 CHIRP MDI GPS G4N CHO features an 8 Inch display, MEGA Down Imaging, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 8 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. This CHO (Control Head Only) model allows you to pick the right accessory transducer for your needs, features compatibility with Minn Kota Built-in MEGA Imaging trolling motors.

Humminbird 4113401CHO Attributes

  • Display Size: 8 Inch LCD
  • Display Resolution: 1024 X 600 Pixels
  • Overall Dimensions: 12 Inch Length X 7 Inch Height X 4.13 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 4113401CHO 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 4113401CHO Installation Instructions

Humminbird 4113401CHO Warranties


HELIX 8® CHIRP MEGA DI GPS G4N CHO Display Only

The HELIX 8 CHIRP MDI GPS G4N CHO features an 8" display, MEGA Down Imaging, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 8 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. This CHO (Control Head Only) model allows you to pick the right accessory transducer for your needs, including compatibility with Minn Kota Built-in MEGA Imaging trolling motors. 

Features:

  • Control Head Only Model: This model does not include a transducer. This CHO model is a great choice for those looking to connect to connect to Built-in MEGA Imaging on Minn Kota trolling motors, accessory transducer options like MEGA 360 Imaging, or share sonar data from an existing Humminbird Ethernet network. 
  • 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 coverage down to 125 feet below your boat. You'll unlock new details with up to 3X more fish-finding detail than standard 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, power cable, gimbal mounting bracket. This CHO model does not include a transducer, allowing you to pick the transducer that best fits your rigging needs.
  • 2-Year Limited Warranty


"The HELIX CHIRP MDI GPS G4N CHO features an \" display, MEGA Down Imaging, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 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. This CHO (Control Head Only) model allows you to pick the right accessory transducer for your needs, including compatibility with Minn Kota Built-in MEGA Imaging trolling motors."
SKU: NVN-85738
MPN: 411340-1CHO
UPC: 082324054945
03 · The numbers

Technical specifications

BrandHumminbird
ModelHumminbird HELIX 8® CHIRP MEGA DI GPS G4N CHO Display Only
SKU / MFR#85738

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04 · Before you buy

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05 · Customer voices

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