Humminbird HELIX 7 CHIRP MEGA SI GPS G4N Fish Finder - Professional Marine Navigation System
Unlock the underwater world with unprecedented clarity and precision. The Humminbird HELIX 7 CHIRP MEGA SI GPS G4N delivers professional-grade fish finding technology that transforms how you locate fish, navigate waters, and map your favorite spots. Featuring revolutionary MEGA imaging technology that provides up to 3X more detail than standard sonar, this advanced chartplotter empowers serious anglers and recreational boaters to fish with confidence.
Revolutionary MEGA Imaging Technology
Experience crystal-clear underwater vision with MEGA Side Imaging and MEGA Down Imaging that reveal fish-holding structure, bottom composition, and cover with extraordinary detail. See out to 125 feet on either side of your boat and down to 125 feet below with imaging resolution that makes every underwater feature visible. This breakthrough technology operates at 1075-1150 kHz frequencies, delivering the highest resolution sonar available in recreational marine electronics.
Dual Spectrum CHIRP Sonar Performance
Before you cast, know exactly what's down there with Dual Spectrum CHIRP 2D sonar powered by Humminbird's proprietary Low-Q CHIRP transducer technology. Switch between Wide Mode for maximum coverage and Narrow Mode for focusing on the finest detail. Operating across 75-250 kHz frequency ranges, this advanced sonar system delivers highly-detailed fish arches and clear bottom definition that eliminates guesswork from your fishing strategy.
Professional-Grade 7-Inch Display
Master every detail with the high-definition 7-inch color display featuring 1024H x 600V pixel resolution and 16-bit grayscale processing. The bright, sunlight-readable screen provides crystal-clear visibility in all conditions, while intuitive keypad controls with softkey operation ensure reliable performance even with wet hands or in rough seas. Pre-loaded split-screen view options let you monitor multiple sonar modes simultaneously.
Comprehensive GPS Navigation & Mapping
Navigate with total confidence using the built-in GPS and enhanced Humminbird Basemap covering over 10,000 lakes plus complete continental U.S. coastal charts. Identify buoys, day markers, hazards, marinas, depth contours, and points of interest instantly. The system supports premium chart compatibility including LakeMaster®, CoastMaster™, and Navionics® charts for the most detailed mapping available.
AutoChart Live Real-Time Mapping
Create custom maps of your fishing spots in real-time with AutoChart Live technology. Map depth contours, bottom hardness, and vegetation as you drive, building a personalized database of your favorite waters. Includes 8 hours of built-in recording time with compatibility for AutoChart Zero Line SD cards for unlimited mapping capacity.
Advanced Networking & Connectivity
Integrate seamlessly with your complete marine electronics system through comprehensive networking capabilities:
- NMEA 2000® Built-In - Connect engine data, weather information, and other vessel systems
- Ethernet Networking - Build professional-grade fishing systems with multiple displays
- Bluetooth® Connectivity - Wireless control of Talon/Raptor anchors and smartphone integration
- Wi-Fi Support - Software updates and data sharing
- One-Boat Network™ Compatible - Full integration with Minn Kota i-Pilot Link systems
Professional Installation Specifications
Designed for reliable marine environments with ABYC-compliant electrical specifications. The unit operates on 10.8-20 VDC with 800mA power draw and delivers 4000 watts peak-to-peak sonar power (500 watts RMS). The included XNT 9 HW MSI 150 T transom-mount transducer ensures optimal performance with proper ABYC E-11 compliant installation.
Key Technical Specifications
- Display: 7" diagonal, 1024H x 600V pixels
- Sonar Coverage: 20°, 42°, 60° & (2) 86° @ -10dB
- CHIRP Frequencies: 83/200 kHz (75-155/130-250 kHz)
- Imaging Frequencies: 455 kHz, MEGA DI/SI (1075-1150 kHz)
- Power Output: 4000W Peak-to-Peak, 500W RMS
- Memory: Dual MicroSD card slots
- Mounting: Gimbal bracket (10.54" W x 5.8" H x 3.68" D)
Complete Package Contents
Ready for professional installation with all necessary components:
- HELIX 7 G4N control head with gimbal mounting bracket
- XNT 9 HW MSI 150 T transom-mount transducer
- Marine-grade power cable
- Complete mounting hardware
- Quick-start guide and documentation
Why Choose HELIX 7 CHIRP MEGA SI GPS G4N
This professional fish finder combines cutting-edge sonar technology with reliable GPS navigation and comprehensive networking capabilities. Whether you're tournament fishing, recreational angling, or exploring new waters, the HELIX 7 G4N provides the detailed underwater intelligence and precise navigation tools needed to maximize your time on the water. NMEA 2000 compliance and ABYC-compatible installation ensure professional-grade reliability and safety.
Frequently Asked Questions
What's the difference between MEGA imaging and standard sonar?
Is this unit compatible with existing marine electronics?
What type of transducer installation is required?
Can I add premium charts to this unit?
What power requirements are needed for installation?
Humminbird HELIX 7 G4N CHIRP MEGA SI GPS
Model: 411940-1- Keypad control: Master HELIX at the touch of a button. Access the pre-loaded views from the user-friendly menu system, operated by softkey controls that allow you to reliably operate your fish finder in any conditions.
- MEGA Side Imaging: See the world below like never before with crystal-clear viewing out to 125 feet on either side of your boat. You'll unlock new details with up to 3X more detail than standard Side Imaging sonar.
- 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 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 CHIRP 2D sonar 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: These Humminbird models seamlessly integrate and communicate with other Humminbird and Minn Kota 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. 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.
The HELIX 7 CHIRP MEGA SI GPS G4N fish finder features MEGA Side Imaging, MEGA Down Imaging, Dual Spectrum CHIRP Sonar, AutoChart Live, Internal GPS and Humminbird Basemap built-in. An upgraded high-definition 7"" display will give you the best view of the many pre-loaded split screen view options so that you'll never miss a fish. All HELIX 7 G4N models support Ethernet networking, Bluetooth(R), NMEA 2000(R), Wi-Fi and are compatible with the One-Boat Network(TM), which means you'll have total control of your fishing machine at your fingertips.
Specifications| Display Size - Diagonal | 7"" |
| Display Pixel Matrix | 1024H x 600V |
| Sonar-Standard | Dual Spectrum CHIRP, MEGA Down Imaging, MEGA Side Imaging |
| Sonar-Coverage | 20°, 42°, 60° & (2) 86° @ -10dB |
| Sonar-Optional | 53 kHz, 50/Low Airmar CHIRP |
| CHIRP - Frequencies Supported | 83/200 (75-155/130-250 kHz), Full Mode (150-220 kHz), Narrow Mode (180-240 kHz), Wide Mode (140-200 kHz) |
| Sonar-Frequencies Supported | 50/83/200/455/800 kHz & 1.2 MHz |
| Depth-Sonar | 1,200 ft (standard transducer), 3,500 ft (optional 50 kHz) |
| CHIRP - Imaging-Frequencies Supported | 455 kHz (440-500 kHz), MEGA DI (1075-1150 kHz), MEGA SI (1075-1150 kHz) |
| Depth-Down Imaging | 400 ft (455 kHz), 75 ft (MEGA) |
| Range-Side Imaging (Side-To-Side) | 800 ft (455 kHz), 250 ft (MEGA) |
| Interface | Keypad Control |
| Features | Built In GPS, Built In Mapping, Dual Spectrum CHIRP, Down Imaging, Side Imaging, MEGA Imaging, MEGA Live Imaging, Bluetooth, Networking, Wi-Fi |
| Memory Card Slot | Dual Micro SD |
| Compatible With | AIS, AutoPilot, Minn Kota US2 Sonar, Minn Kota Built-In MEGA DI, MEGA Live, One-Boat Network, Minn Kota i-Pilot Link, Minn Kota Talon/Raptor, NMEA 2000, Radar |
| Power Draw | 800 mA |
| Power Input | 10.8-20 VDC |
| Power Output Peak-to-Peak | 4000 Watts |
| Power Output RMS | 500 Watts |
| Screen Snap Shot | Included |
| Sonar Recording | Included |
| Mount-Standard | Gimbal |
| Mount-Standard Size | 10.54"" W x 5.8"" H x 3.68"" D |
| Mount-Optional Size | 10.54"" W x 5.44"" H x 1.13"" D |
| Transducer Mount Location | Transom |
| Transom | Included |
| GPS Trackplotting | Included |
| LakeMaster Compatibility | Yes |
| Coast Master Compatibility | Yes |
| Navionics Gold/HotMaps Compatibility | Yes |
| Navionics Platinum + Compatibility | Yes |
| Platinum Compatibility | Yes |
| Heading Sensor GPS Compatibility | Yes |
| Upgradable Software | Yes |
| View Preset Keys | Yes |
| X-Press Menu System | Yes |
| Custom Digital Readout | Yes |
| Custom View Selections | No |
| Display Colors Grayscale | 16-Bit |
| Speed | Included |
| Temperature | Built In |
| Temperature Alarm | Yes |
| Temperature Graph | Yes |
| HDMI Compatible | No |
| MEGA Live Compatibility | Yes |
What's in the Box:
- Control head
- Transom-mount transducer XNT 9 HW MSI 150 T
- Power cable
- Gimbal mounting bracket
- Mounting hardware.
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Humminbird HELIX7 CHIRP MSI GPS G4N Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Humminbird |
| Weight: |
11.4 lb |
Humminbird HELIX7 CHIRP MSI GPS G4N User Reviews
Humminbird HELIX7 CHIRP MSI GPS G4N Shipping & Return
| Shipping Weight: |
11.4 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.