Furuno Lack Box TruEcho CHIRP DFF1-UHD digital sonar module

The DFF1UHD , Black Box TruEcho CHIRP™ (Compressed High-Intensity Radar Pulse) sonar, was designed by Furuno to exploit the new generation of CHIRP broadband probes. The CHIRP combination: Broadband probe and DSP (Digital Signal Processing) sonar combine for better fish and bottom detection and much better performance at high speeds.

TruEcho CHIRP™ technology is cutting-edge technology for professionals and discerning boaters that provides better echo discrimination by simultaneously scanning targets with varying frequencies. Thanks to this technology, the fishfinder can detect, for example, fish less than 15 cm at a depth of 90 m.

CHIRP technology on the DFF1UHD fishfinder uses a precise configuration. It features a multi-frequency sweep for long pulse duration, transmitted from a Broadband probe. In fact, the sound energy transmitted in the water is 10 to 1000 times greater than that of a conventional sounder. The echo return, greater than that generated by a conventional probe, is then processed by the sounder's DSP and displayed in detail on the screen.

The DFF1UHD determines the nature of the background with the Background Discrimination function. The seabed is made up of very different elements that are often impossible to see. However, we would like to know its nature in order to position ourselves on the best fishing spot or know where to anchor. Bottom Discrimination technology offers the possibility, in addition to the sonar functions for classic fishing, to analyze and illustrate the nature of the bottom: mud, sand, gravel or rock, in depths of 5 to 200 m.

The new DFF1UHD , Black Box TruEcho CHIRP™ sonar, was designed by Furuno to exploit the new generation of Broadband probes. The CHIRP combination: Broadband transducer and DSP sonar combine for better fish and bottom detection and much better performance at high speeds. Bottom Discrimination technology offers the possibility, in addition to traditional sonar functions, to analyze and illustrate the nature of the bottom: mud, sand, gravel or rock, in depths of 5 to 200 m.

The ACCU-FISH™ function allows the determination of fish size and is specific to Furuno to individually assess the size of a fish. Different symbols can be used to display each echo returned by detected fish. This is a great help for beginners and makes fishing even more interesting.