Designed to operate over a wide range of frequencies utilizing a broadband transducer, the DFF1-UHD TruEcho CHIRP™ network sounder for TimeZero™, 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 1,000 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.
 

Utilizing input from the network fish finders BBDS1 or DFF1-UHD, the bottom discrimination display will be shown in the following four categories; "Rocks", "Gravel", "Sand" and "Mud", either in dedicated graphics or colors with corresponding probability. This information helps spot rich fishing grounds where you can boost your catch of the day.

Furuno’s award-winning network of fish finders offers a unique fish size analyzer function, ACCU-FISH™. The ACCU-FISH™ algorithm analyzes echo returns to compute individual fish size and display it on the screen.