The HELIX 9 CHIRP MEGA SI+ GPS G4N features a 9″ display, MEGA Side Imaging+, MEGA Down Imaging+ and Dual Spectrum CHIRP Sonar. Includes GPS mapping with built-in Bluetooth, Ethernet networking capabilities, AutoChart Live with depth, vegetation and bottom hardness mapping. Fish and navigate with confidence thanks to the guidance of Humminbird Basemap built-in.
SONAR
MEGA Side Imaging+
455 kHz: 405-505 kHz – 800 ft (244 m) Side-to-Side
800 kHz: 780-840 kHz – 250 ft (76 m) Side-to-Side
MEGA: 1050-1175 kHz – 400 ft (122 m) Side-to-Side
MEGA Down Imaging+
455 kHz: 435-535 kHz – 400 ft (122 m) Depth
800 kHz: 800-860 kHz – 125 ft (38 m) Depth
MEGA: 1100-1200 kHz – 200 ft (61 m) Depth
Dual Spectrum CHIRP with SwitchFire®
1200 ft (366 m) Depth
3500 ft (1067 m) Depth*
Full Mode: 150-220 kHz
Narrow Mode: 180-240 kHz @ 25°
Wide Mode: 140-200 kHz @ 42°
10 Hz PRECISION GPS
Built-In Mapping: Humminbird Basemap/AutoChart Live
