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home > Humminbird HELIX 12® CHIRP MEGA SI+ GPS G4N > Humminbird HELIX 12® CHIRP MEGA SI+ GPS G4N

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Humminbird HELIX 12® CHIRP MEGA SI+ GPS G4NUnlock Crystal Clear Underwater Views with Advanced Imaging Imagine gliding across the water, spotting fish hugging structure or schools darting through weeds before you even drop a line. The Humminbird Helix 12 delivers that edge with MEGA Side Imaging+ and MEGA Down Imaging+. These technologies push boundaries, revealing details up to 200 feet side to side and below your boat that's 20% sharper images and extended range compared to standard MEGA

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Unlock Crystal-Clear Underwater Views with Advanced Imaging

Imagine gliding across the water, spotting fish hugging structure or schools darting through weeds before you even drop a line. The Humminbird Helix 12 delivers that edge with MEGA Side Imaging+ and MEGA Down Imaging+. These technologies push boundaries, revealing details up to 200 feet side-to-side and below your boat— that's 20% sharper images and extended range compared to standard MEGA setups. Anglers chasing bass in thick cover or walleye on deep flats swear by this level of precision, turning guesswork into targeted casts.

Pair it with Dual Spectrum CHIRP sonar for versatile scanning. Switch between wide coverage to scan vast areas quickly or narrow focus for pinpointing subtle bottom changes and fish arches. This sonar style spreads frequencies across a broad band, painting richer pictures of the underwater world than traditional single-frequency systems ever could.

Navigate and Map Like a Pro with Built-In GPS and Basemaps

Getting lost or missing prime spots? Not with the integrated GPS and Humminbird Basemap at your helm. Covering over 10,000 inland lakes and U.S. coastal waters, it highlights contours, hazards, marinas, and depth markers effortlessly. Store up to 2,750 waypoints to mark hot honey holes, then rely on precision positioning for spot-on returns trip after trip.

AutoChart Live lets you generate custom maps on the fly—depth, hardness, vegetation—all saved to a microSD card for later tweaks on PC.
Upgrade with premium charts for even finer detail, compatible with leading options that layer high-definition contours over your scans.

Pro tip: Run AutoChart during low-traffic times to build noise-free maps, then overlay them for unbeatable structure insights.

Build a Seamless On-Water System with Networking Power

Why stop at standalone? This unit thrives in a connected ecosystem. Ethernet links multiple displays or adds radar for all-weather awareness. Bluetooth pairs with anchors and downriggers for touchscreen control, while NMEA 2000 pulls in engine data, weather, and more. Wi-Fi enables quick software updates and app integration for notifications on the go.

One-Boat Network compatibility shines brightest—sync with trolling motors for auto-spot locking or downriggers for precise deployments. Tournament pros build full systems around this backbone, sharing data across units for team advantage.

Intuitive Controls Built for Real-World Fishing

The oversized 12.1-inch high-res screen dominates your dash, delivering vivid colors even in harsh sunlight. Keypad operation keeps it reliable—wet gloves, bumpy rides, no problem. Fully waterproof construction laughs off spray, rain, or the occasional dunking.

Dimensions fit most consoles snugly, with included gimbal mount and transom transducer ready to go. Power it up, and preloaded views like Live MEGA Imaging put action in real-time, helping you react to moving fish instantly.

Maximize Your Helix 12: Angler-Tested Tips

Transducer Placement: Mount the included 1kW unit dead-center on the transom, 1/8-inch below hull bottom for clean water flow. Test at speed to minimize air bubbles.
Sonar Settings: Dial MEGA SI+ to medium sensitivity for cluttered water; crank it for open lake scans. Use 2D sonar simultaneously for hybrid views.
Maintenance: Rinse with fresh water post-salt trips. Update firmware seasonally for new features like enhanced Live Imaging.
Fishing Hacks: Scroll history on Down Imaging to rewind structure passes, or split-screen SI+ with GPS for instant lure adjustments.

These tweaks separate casual users from limit-fillers, especially in high-pressure tourneys or family outings where every minute counts.

Frequently Asked Questions

What makes MEGA Side Imaging+ better than standard side imaging?

MEGA Side Imaging+ offers 20% more detail and up to 60% greater range, scanning 200 feet per side with stunning clarity to reveal fish and cover like a spotlight underwater.

How does Dual Spectrum CHIRP differ from traditional sonar?

It transmits across multiple frequencies simultaneously for detailed fish arches and bottom profiles, with Wide mode for coverage and Narrow for fine targets—far superior to single-frequency returns.

Can I create my own maps with this fish finder?

Yes, AutoChart Live maps depth, hardness, and vegetation in real-time as you boat along, with 8 hours of onboard storage expandable via microSD cards.

What networking options does it support?

Ethernet, Bluetooth, Wi-Fi, and NMEA 2000 for connecting multiple units, motors, anchors, radar, and more in a One-Boat Network setup.

Is the display suitable for bright sunlight conditions?

Absolutely—the 12.1-inch LCD with 1280x800 resolution provides excellent visibility, even in direct sun, thanks to high brightness and anti-glare properties.

Does it include a transducer?

Yes, it comes with a transom-mount 1kW transducer optimized for MEGA SI+, DI+, and Dual Spectrum CHIRP sonar.

The HELIX 12 CHIRP MSI+ GPS G4N features a 12.1 Inch display, MEGA Side Imaging+, 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 4114501 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 4114501 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 Side And Down Imaging+ Extends Out To 200 Feet On Either Side, Plus 20 Percent More Detail Than MEGA Side And 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
Map The Water As You Drive The Boat And Keep The Data Stored On Your Fish Finder Or Import It Into The AutoChart PC Program
LakeMaster Lake Maps Features Unrivaled, Easy-To-Read Contours, Highlighted Depth Ranges, Scrollable Lake Lists And More
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 4114501 Installation Instructions

Humminbird 4114501 Warranties

Humminbird 2-Year Limited Warranty.pdf

Humminbird 4114501 Technical Bulletins

HUM_productmanual_Transducer_RG_532651E.pdf

HELIX 12® CHIRP MEGA SI+ GPS G4N

The HELIX 12 CHIRP MSI+ GPS G4N features a 12.1" display, MEGA Side Imaging+, 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 Side Imaging+: See the world below like never before with a crystal-clear Side Imaging viewing out to 200 feet on either side of your boat. You'll unlock more fish and structure with 20% more detail and 60% more range capability than MEGA Side Imaging sonar.
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

HELIX 12 CHIRP MSI + GPS G4N has a 12.1-inch display, MEGA Side Imaging +, MEGA Down Imaging +, bispectral CHIRP sonar and built-in GPS with Humminbird basemap. Like all HELIX G4N models, this HELIX 12 has standard features such as AutoChart Live, Wi-Fi and NMEA 2000, as well as Bluetooth and Ethernet compatible with Humminbird, Minn Kota and CannonÃ¢â‚¬â„¢s One-Boat Network series products. . The pre-loaded view in the humanized menu system is operated by soft key controls, allowing you to operate the fish finder reliably in any situation. MEGA side imaging + MEGA downward imaging + dual-spectrum CHIRP sonar built-in GPS and Humminbird basemap advanced charts compatible with AutoChart Live
SKU: NVN-85759
MPN: 411450-1
UPC: 082324055126

Humminbird HELIX 12® CHIRP MEGA SI+ GPS G4N

Name: Humminbird HELIX 12® CHIRP MEGA SI+ GPS G4N
Brand: www.midwoodautocraft.com
SKU: 89601567940
Price: 1349.99 USD
Availability: InStock
Rating: 4.0072 (591 reviews)