XM 9 HW MDI T HELIX(R) MEGA DI+ Dual-Spectrum CHIRP with Temperature Transom Transducer Transducers & Accessories No AC power required

No AC power required

rear & subwoofer preamp outputs

Includes PL-414BG UFO amplified outdoor HDTV antenna

Includes adjustable rack-mount hardware

Built-in digital audio amp

XM 9 HW MDI T HELIX(R) MEGA DI+ Dual-Spectrum CHIRP with Temperature Transom Transducer Transducers & Accessories No AC power requiredCompatible with Humminbird(R) HELIX(R) 8 G3N Series MEGA DI & MEGA SI+, HELIX(R) 9 G3N Series MEGA DI & MEGA SI+, HELIX(R) 10 G3N Series MEGA DI & MEGA SI+ & HELIX(R) 12 G3N Series MEGA DI & MEGA SI+; Dual spectrum CHIRP freq Full: 150kHz 220kHz, Narrow: 180kHz 240kHz, Wide: 140kHz 200kHz; Dual spectrum CHIRP max depth: 1,200ft; Down Imaging(R) freq max depth: 455kHz: 440kHz 500kHz 400ft; 800kHz: 790kHz 850kHz 125ft; MEGA DI+: 1,075kHz 1,150kHz 200ft;