Humminbird HELIX® 7 CHIRP MEGA DI Fishfinder/GPS Combo G3N - Display Only

Unlock Crystal-Clear Waters with Advanced Sonar Technology

Picture this: you're out on the lake at dawn, the water still and mysterious. With the HELIX 7 CHIRP MEGA DI G3N control head, you gain the power to peer deep into that abyss, revealing hidden structures, schools of fish, and the perfect drop-off zones without guesswork. This display-only unit delivers a stunning 7-inch ultra-wide screen packed with split-screen views, making it easier than ever to multitask between sonar readings, GPS navigation, and live mapping.

What sets this model apart is its flexibility—pair it with your preferred transducer or even a Minn Kota trolling motor equipped with built-in MEGA Down Imaging. No more settling for subpar visibility; this setup empowers serious anglers to customize their system for any boat or fishing style, from bass boats to kayaks.

MEGA Down Imaging: See Every Detail Below Your Boat

Standard Down Imaging? That's yesterday's tech. MEGA Down Imaging ramps it up with up to three times the output power, scanning down to 125 feet with jaw-dropping clarity. Think photo-like images of the bottom, distinguishing between mud flats, rocky points, and weed edges that hold trophy fish.

Anglers report spotting individual baitfish darting around brush piles or subtle ledges that traditional sonar misses. Whether you're jigging vertically or drifting for crappie, this feature turns murky water into a transparent fishing map, boosting your catch rates on familiar waters.

Dual Spectrum CHIRP and SwitchFire: Master Your Sonar Returns

Dual Spectrum CHIRP sonar gives you the best of both worlds: wide mode sweeps massive areas to locate fish fast, while narrow mode zooms in on precise targets with long, clean arches and sharp bottom contours. It's powered by a low Q transducer design that cuts through clutter like temperature layers or boat wakes.

Pair it with SwitchFire, and you're in full control. Toggle between Clear Mode for simplified views in turbulent conditions or Max Mode for every nuanced detail, including watching your lure's path. This adaptability shines in rivers with current or deep reservoirs where conditions shift quickly.

Built-in Mapping and Real-Time AutoChart Live

Humminbird Basemap comes pre-loaded with over 10,000 lakes and coastal charts, highlighting contours, hazards, marinas, and more for confident navigation. But the real magic happens with AutoChart Live—drive your boat and instantly generate custom maps of depth, hardness, and vegetation. Eight hours of onboard recording means you build high-definition spot charts on the fly, rivaling premium surveys.

Compatible with LakeMaster cards, you can layer in shaded relief and depth highlights for that edge on high-pressure lakes. GPS tracking, waypoints (up to 2,750), routes, and tracks keep you oriented, even in fog or low light.

Expand Your System with Ethernet and Bluetooth

High-speed Ethernet lets you network multiple units or add game-changers like 360 Imaging, Minn Kota i-Pilot Link for spot-lock precision, or even radar for offshore runs. Bluetooth keeps things modern: update software wirelessly via the FishSmart app, mirror phone notifications, or control settings with a remote.

It's a scalable platform for weekend warriors building toward pro-level setups, all without constant wiring hassles.

Key Specifications at a Glance

Note: Transducer not included—select based on your vessel and fishing depth.

Installation Tips for Seamless Setup

Mount the gimbal bracket on your console for optimal viewing angles, or go in-dash for a clean look. Power draw is efficient at 800 mA, drawing from 10.8-20 VDC sources. For Minn Kota integration, use the specific adapter cable to tap into motor-mounted transducers. Quick-release mounting makes trailering a breeze.

Elevate Your Fishing Game Today

From weekend outings to tournament chases, this control head delivers pro-grade insights in a user-friendly package. Its keypad interface, customizable views, and robust build ensure reliability season after season. Ready to see what's really down there?