< GARMIN CHIRPS
Garmin now offers a CHIRP transducer to work with its photo-quality sonar imaging DownVu and SideVu systems. CHIRP, which is an acronym for compressed high-intensity radiated pulse, does not use a single frequency, but a continuous sweep of frequencies ranging from low to high. This provides a wider range of information, which results in a sharper, higher resolution image. These GT30-TH AND GT30-THP transducers are used in conjunction with a black box processor and feature a built-in fast response temperature sensor. Both have a power rating of 500 watts per element (1,500 watts total) with a maximum depth of 750 feet for DownVu and 500 feet left and right for SideVu. The GT30-TH thru-hull scanning transducer is for bottom deadrises of less than 5 degrees and costs $700. The GT30-THP (through-hull pair) scanning transducers for deadrises of 5 to 25 degrees cost $1,250. Visit www.garmin.com.