SS175 Medium Chirp, 1kW, 12 degree Tilted Element , Si-Tex 8-Pin, DT 1 kW The SS175M s medium frequency delivers the right combination of coverage under the boat, extended depth range, and the ability to produce clean and accurate target and structure returns in mid to deeper water. Medium frequency also provides excellent shallow to mid-depth performance, bottom detail, and fish-target separation. Operating at a frequency range of 85 to 135 kHz, this transducer reveals fish at medium depths of up to 457 m (1500 ft) and delivers ultra-clear target resolution. Airmar s Tilted Element transducers have the element fixed at a 20 degree, 12 degree, or 0 degree angle within the housing. Because the transducer is installed almost flush to the hull, the tilt corrects for the hull deadrise. It orients the ceramic element horizontally to ensure maximum echo returns to the transducer. The SS175M is available in three Tilted Element models: Fixed 20 degree tilted version for 16 to 24 degree hull deadrise angles Fixed 12 degree tilted version for 8 to 15 degree hull deadrise angles Fixed 0 degree tilted version for 0 to 7 degree hull deadrise angles