Airmar B150 12 Degree Tilt Medium CHIRP 300W 8-Pin f/Garmin [B150C-12-M-8G]B150 12 Degree Tilt Medium CHIRP 300W 8 Pin for Garmin As CHIRP continues to redefine recreational fishing, Airmar has expanded its lineup of broadband transducers to satisfy the growing demand for this game changing technology. New to the market is AIRMARs B150C M, an economical CHIRP transducer designed for anglers with a focus on inland or freshwater fishing with ultra clear target resolution. Operating at a frequency range of 95 155 kHz, the B150C