Humminbird

Humminbird HELIX® 7 CHIRP Fishfinder/GPS Combo G3N w/Transom Mount Transducer

SKU: 73579 · UPC: 082324053337 · MPN: 411060-1
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02 · Overview

Humminbird HELIX® 7 CHIRP Fishfinder/GPS Combo G3N w/Transom Mount Transducer — Product description

Picture this: you're out on the water at dawn, chasing that perfect bass bite. Your sonar screen lights up with crisp, detailed arches showing fish holding tight to a submerged stump, while your GPS tracks every waypoint for next time. That's the everyday magic of the HELIX 7 CHIRP Fishfinder/GPS Combo G3N—built for anglers who demand precision without the complexity.

Unlock Superior Sonar Performance with Dual Spectrum CHIRP

At the heart of this unit beats Dual Spectrum CHIRP technology, delivering two sonar search modes in one transducer. Wide mode sweeps massive coverage to locate schools fast, while narrow mode zooms in on individual targets with jaw-dropping detail. Unlike traditional sonar that muddies the picture in cluttered water, this Low Q CHIRP setup paints long, unmistakable fish arches and reveals bottom hardness, vegetation, and structure like never before. Anglers report spotting crappie suspended just off drop-offs or walleye hugging the bottom—details that turn good days into limits.

Customize Your View with SwitchFire Sonar

Water conditions change bite to bite—shallow weeds, thermoclines, or turbulent currents. SwitchFire lets you dial in your sonar display on the fly: ramp up detail for structure hunting or clean it up for tracking lures dropping through the water column. It's like having a pro-level toggle that adapts to your style, whether you're finesse jigging stripers or power-fishing smallmouths.

Navigate Confidently with Built-in Basemap and AutoChart Live

Humminbird Basemap isn't just a chart—it's your edge with high-definition contours on over 10,000 lakes, coastal U.S. coverage, and key landmarks like marinas, hazards, and depth markers. But the real game-changer? AutoChart Live. As you idle your boat, it maps custom contours, vegetation, and hardness in real-time, storing eight hours of data onboard. Export to LakeMaster for even sharper detail, turning unfamiliar waters into your home lake. Tournament pros swear by it for quick scouting and post-trip analysis.

Build a Pro Networking Setup

Ethernet connectivity opens the door to a full fishing ecosystem. Link multiple HELIX units for shared screens, or integrate with trolling motor controls, 360-degree imaging, or radar. Bluetooth keeps things modern too—grab software updates via app, view phone notifications without digging in your pocket, or pair a remote for hands-free control. It's scalable for solo kayak trips or multi-boat fleets.

Effortless Setup and Rugged Reliability

Everything you need ships in the box: transom-mount transducer, power cable, and gimbal bracket for quick install. The 7-inch ultra-wide display handles split-screen views effortlessly—sonar on one side, charts on the other, GPS speeds and waypoints prominent. Built tough for marine life, it thrives in spray, bumps, and long days on the water.

Tips from Seasoned Anglers

  • For Bass Fishing: Use narrow CHIRP in 10-30 feet to ID bedding fish; overlay AutoChart vegetation layers for weedline strikes.
  • Open Water Trolling: SwitchFire's cleanup mode shines for following downriggers—watch spoons vibrate all the way down.
  • Low-Light Bites: Wide mode covers ground fast at dusk; Bluetooth notifications mean no missed calls from the dock.
  • Custom Mapping Hack: Run parallel passes 20 feet apart for spot-on contours; save favorites as waypoints for ice season scouting.

Whether you're dialing in a new lake or refining your honey holes, the HELIX 7 CHIRP G3N delivers tools that fish respond to—and limits that fill coolers. Ready to see what's really down there?

What makes Dual Spectrum CHIRP better than standard sonar?

Dual Spectrum CHIRP combines wide-area coverage for finding fish with narrow-mode detail for precise identification, reducing clutter and showing clearer fish arches, structure, and bottom composition—ideal for varied water conditions.

Can I create my own maps with this fishfinder?

Yes, AutoChart Live generates real-time custom maps of depth, hardness, and vegetation as you boat along, with eight hours of onboard storage and compatibility for LakeMaster enhancements.

Does the HELIX 7 support networking with other devices?

Absolutely—high-speed Ethernet lets you connect multiple units or add-ons like trolling motors, imaging systems, and radar for a professional-grade setup.

How does Bluetooth enhance the user experience?

Bluetooth enables wireless software updates, smartphone notifications on-screen, and optional remote control, keeping your phone dry and features accessible without fumbling.

What’s included for mounting and setup?

The package comes complete with a transom-mount transducer, power cable, gimbal bracket, and hardware—plug-and-play for most boats.

Is this unit suitable for both freshwater and saltwater?

Yes, its rugged design and versatile sonar handle everything from inland lakes to coastal bays, with basemaps supporting both environments.

How do I adjust sonar for different fishing techniques?

SwitchFire Sonar offers instant modes to tweak detail levels, perfect for jigging, trolling, or structure scanning—experiment to match depth and speed.

HELIX® 7 CHIRP Fishfinder/GPS Combo G3N with Transom Mount Transducer 

The HELIX 7 CHIRP GPS G3N features Dual Spectrum CHIRP Sonar, Ethernet networking capability, Bluetooth connectivity, AutoChart Live, GPS and Humminbird Basemap built-in. The 7", ultra-wide display gives you ample room to view the many pre-loaded split screen view options. 

Features: 

  • Dual Spectrum CHIRP: Before you cast, know what's down there thanks to long, well-defined 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 maximum detail.
  • SwitchFire Sonar: Take command of how your sonar returns appear. With two display modes, you can add or remove detail, account for water depth, temperature and turbulence, even watch lure presentations - all at the push of a button.
  • Humminbird Basemap Built-in: Our enhanced standard 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 U.S.
  • 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, with eight hours of built-in recording time.
  • 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, 360 Imaging and CHIRP Radar.
  • Bluetooth: Enable features like wireless software updates from the Humminbird FishSmart App and also keep your phone out of the water and in your pocket by displaying notifications on your Humminbird. Additionally, you can take control of your most-used features with an optional Bluetooth remote (RC2).
  • LakeMaster Compatible: Upgrade to the unrivaled accuracy and detail of Humminbird LakeMaster maps. From easy-to-read contours, to highlighted depth ranges, to scrollable lake lists, you'll have all the tools you need to make every moment count
  • Includes transducer and mounting hardware, power cable, gimbal mounting bracket.

WARNING: This product can expose you to chemicals including 1,3-Butadiene which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.




SKU: NVN-73579
MPN: 411060-1
UPC: 082324053337
03 · The numbers

Technical specifications

BrandHumminbird
ModelHumminbird HELIX® 7 CHIRP Fishfinder/GPS Combo G3N w/Transom Mount Transducer
SKU / MFR#73579

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04 · Before you buy

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05 · Customer voices

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