The Humminbird HELIX 7 CHIRP MEGA DI GPS G4 delivers MEGA Down Imaging clarity down to 125 feet, Dual Spectrum CHIRP sonar with Wide and Narrow scanning modes, a sharp 7-inch 1024x600 display, built-in GPS, and AutoChart Live mapping — all in a package designed for anglers who want precise target detail and reliable navigation without guesswork.

Features:

• Keypad control with softkey operation gives you reliable access to pre-loaded split-screen views through a straightforward menu system, usable in any conditions.
• MEGA Down Imaging provides up to 3X more underwater detail than standard Down Imaging sonar, with coverage reaching 125 feet below the hull.
• Dual Spectrum CHIRP 2D sonar, powered by a proprietary Low-Q CHIRP transducer, renders detailed fish arches and structure in both Wide Mode (maximum coverage) and Narrow Mode (fine detail focus).
• Internal GPS pairs with Humminbird Basemap to display buoys, day markers, hazards, marinas, depth contours, and points of interest — with charts for more than 10,000 lakes plus continental U.S. coastal coverage.
• Compatible with optional premium charts including Humminbird LakeMaster®, CoastMaster™, and Navionics® for expanded coverage.
• AutoChart Live creates real-time depth contour, bottom hardness, and vegetation maps as you travel, with 8 hours of built-in recording time; supports AutoChart Zero Line SD cards for extended capacity.
• Includes control head, transom-mount transducer, power cable, gimbal mounting bracket, and mounting hardware.
• 1-Year Limited Warranty.

Specifications:

• Display Size (Diagonal): 7"
• Display Pixel Matrix: 1024H x 600V
• Sonar — Standard: Dual Spectrum CHIRP, MEGA Down Imaging
• Sonar — Coverage: 20°, 42°, 60°, and (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 and 1.2 MHz
• Depth — Sonar: 1,200 ft (standard transducer), 3,500 ft (optional 50 kHz transducer)

Resources:

• Owner's Manual (PDF)
• Installation Guide (PDF)
• Quick Start Guide (PDF)