Humminbird Helix 7 CHIRP MEGA SI GPS G3N Fishfinder Chartplotter

Item #: 357220
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Humminbird Helix 7 CHIRP MEGA SI GPS G3N Fishfinder Chartplotter
Humminbird Helix 7 CHIRP MEGA SI GPS G3N Fishfinder Chartplotter
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The Humminbird Helix 7 CHIRP MEGA SI GPS G3N Fishfinder features MEGA Side Imaging, MEGA Down Imaging, Dual Spectrum CHIRP Sonar, Ethernet networking capability, Bluetooth, AutoChart Live, GPS, and built-in Humminbird Basemap. The 7" ultra-wide display gives you ample room to view the many pre-loaded split screen viewing options.

MEGA Side Imaging – NEW to Helix 7
See the world below like never before with crystal-clear viewing out to 125' on either side of your boat. MEGA Side Imaging unlocks new details with up to 3X more output than standard Side Imaging sonar.

MEGA Down Imaging – NEW to Helix 7
Get unprecedented underwater clarity with coverage down to 75' below your boat. MEGA Down Imaging unlocks new details with up to 3X more output than standard Down Imaging sonar.

Dual Spectrum CHIRP
Know what's below your boat thanks to long, well defined fish arches and a clear view of fish-holding structure and the bottom. Powered by the 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, and even watch lure presentations – all at the push of a button.

Humminbird Basemap Built In
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 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. 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 fishfinders or upgrade to add-on technologies like Minn Kota i-Pilot Link, 360 Imaging, and CHIRP Radar.

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.

Included With The Humminbird Helix
Transducer and mounting hardware, power cable, and gimbal mounting bracket.

Display Size: 7" diagonal
Display Matrix: 800H x 480V pixels
Display Colors Grayscale: 16-Bit
Display Type: Color TFT

Dual Spectrum CHIRP Frequencies: Full (150-220 kHz), Narrow (180-240 kHz), Wide (140-200 kHz)
Dual Spectrum CHIRP Depth: 1,200' (standard transducer)
Imaging Frequencies: 455 kHz / MEGA DI & SI (1075-1150 kHz)
Down Imaging Depth: 480' (455 kHz) / 75' (MEGA)
Side-To-Side Imaging Range: 480' (455 kHz) / 250' (MEGA)

Power Draw: 800 mA
Power Input: 10.8 - 20V DC
Power Output Peak-to-Peak: 4000 Watts
Power Output RMS: 500 Watts

GPS Chartplotting
Internal GPS Receiver
GPS Trackplotting: 2,750 waypoints / 45 routes / 50 tracks w/20,000 points
Humminbird Basemap Included

Keypad Control
Memory Card Slot: Single MicroSD
Screen Snap Shot
Sonar Recording
Size (Gimbal Mount): 10.54"W x 5.8"H x 3.68"D
Transom-Mount Transducer Included: XNT 9 HW MSI 150
Target Separation: 2.5"
X-Press Menu System
Custom Digital Readout
Custom View Selections
Temperature Built In
Temperature Alarm
Temperature Graph
  • MEGA Side Imaging with clear views out to 125' on either side of boat
  • MEGA Down Imaging with unprecedented clarity down to 75'
  • High-speed Ethernet networking capabilities
  • Built-in basemap
  • Bluetooth capabilities
Accepts Data Cards
10.54"W x 5.8"H x 3.68"D
Display Resolution
800H x 480V pixels
Display Size
7.0" diagonal
Display Type
Included Cartography
Built-In Basemap
Max. Depth
1200.00 ft
Model Number
Operating Frequency
CHIRP / 455 kHz / MEGA
Power Output
500.00 W
XNT 9 HW MSI 150
Unit Weight
5.05 lb
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