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

Imagine dropping your line into the water and seeing every hidden detail beneath the surface—like fish hovering near structure or subtle bottom changes that scream opportunity. That's the edge the HELIX 7 CHIRP MEGA DI G3N delivers to serious anglers. This isn't just another screen on your dash; it's a game-changer that combines razor-sharp imaging, intuitive mapping, and seamless connectivity to help you find fish faster and boat bigger catches.

Discover the Power of MEGA Down Imaging

Standard sonar leaves too much to guesswork, but MEGA Down Imaging flips the script. With coverage down to 125 feet and up to three times the output of traditional Down Imaging, you'll spot individual fish, bait schools, and precise bottom composition with stunning clarity. Picture this: you're targeting walleye in 80 feet of water, and instead of vague arches, you see fish suspended just inches from a rocky ledge. That level of detail turns good days into epic ones, especially in murky lakes or rivers where visibility is your biggest enemy.

Master Your Waters with Dual Spectrum CHIRP and SwitchFire

Dual Spectrum CHIRP sonar gives you the best of both worlds—wide mode scans massive areas to locate schools quickly, while narrow mode zooms in for pin-sharp details on structure and bottom hardness. Pair it with SwitchFire, and you're in full control: toggle between Cleanse (detailed returns) and Max Mode (clutter-free views) to match conditions like wind chop or thermoclines. Anglers love how it reveals lure action in real-time, letting you tweak presentations on the fly without blind casting.

Chart Your Path with AutoChart Live and Basemap

Why settle for outdated paper maps when you can build custom ones as you fish? AutoChart Live captures depth contours, vegetation, and hardness over eight hours of recording, unlocking LakeMaster-like precision without extra gear. The built-in Humminbird Basemap covers over 10,000 lakes and U.S. coastal areas, highlighting hazards, marinas, and contours so you navigate safely even in unfamiliar territory. For bass tournaments or ice fishing transitions, upgrade to LakeMaster charts for shaded depth highlights that pinpoint sweet spots.

Build a Pro-Level Fishing Network

Ethernet networking lets you link multiple units or add powerhouses like 360 Imaging, Minn Kota i-Pilot Link for spot-on trolling, or even radar for offshore runs. Bluetooth keeps things modern—grab software updates via the FishSmart app, mirror phone alerts to stay connected, or pair an RC2 remote for hands-free control from the bow. It's designed for growth, whether you're rigging a bass boat or a kayak.

Effortless Setup and Everyday Wins

Everything you need arrives ready to mount: the transom-mount XNT 9 HW MDI 75 T transducer, gimbal bracket, power cable, and hardware. The 7-inch ultra-wide, sunlight-readable display (800x480 pixels) handles split-screen views effortlessly—sonar on one side, GPS track on the other. Keypad controls feel natural, even with gloves, and features like screen snapshots and sonar recording let you review hot bites later.

Tailored for Every Angler

Kayak enthusiasts appreciate the compact gimbal (10.54" W x 5.8" H) and low power draw (800 mA), while offshore pros leverage optional 50 kHz for 3,500-foot depths. Bass chasers dial in 2.5-inch target separation to distinguish close-hanging fish. It's compatible with NMEA 2000, AIS, heading sensors, and more, making it a hub for Minn Kota Talon anchors or Navionics Platinum+.

Technical Edge at a Glance

Frequently Asked Questions

Whether you're chasing stripers in coastal bays or crappie in shallow weeds, the HELIX 7 CHIRP MEGA DI G3N equips you with the insights to outfish the competition. Mount it, power it up, and watch your success rate soar.