Designed to operate over a wide range of frequencies utilizing a broadband transducer, the DFF1-UHD TruEcho CHIRP™ network sounder for NavNet TZtouch2, TZtouch and NavNet 3D delivers significant advancements in signal clarity and target definition. Standard, non-CHIRP fish finders operate at one or two individual frequencies and are generally capable of detecting targets and displaying them only within those narrow frequency bands. CHIRP fish finders transmit pulses across a wide range of frequencies, allowing Furuno’s superior Digital Signal Processing (DSP) to display fish and structure targets with unparalleled clarity, accuracy and resolution. The DFF1-UHD uses a precise sweep pattern across 90 frequencies (50 kHz +/- 20 kHz, 200 kHz +/- 25 kHz) within a long duration transmission. The equivalent sound energy transmitted into the water is 10 to 1000 times greater than a conventional fish finder, resulting in more energy on target. The results are up to 5x greater resolution and depth capability than comparably powered, standard fish finders due to the advanced signal processing of the return echo.