Furuno DFF1 / DFF3 Digital Fishfinder

The DFF1 incorporates the Furuno Digital Filter (FDF) for enhanced detection in shallow and deep water. FDF technology helps to optimally adjust the gain, clutter, and output power, as well as suppress surface clutter, so the picture is clearer and easier to decipher. Features 3 zoom functions, audio-visual alarms for preset water depth, fish echoes, or water temp, and selectable auto cruising and fishing modes. The DFF1 digital network sounder can turn any NavNet display into a powerful dual frequency digital fishfinder with selectable 600-Watt or 1 kW output power. The DFF1 operates in 50/200 kHz frequencies and can display either frequency alone or both on the same display.

The DFF3 utilizes Furunos Free Synthesizer (FFS) transceiver, which allows you to select the operating frequency among 28 kHz, 38 kHz, 50 kHz, 88 kHz, 107 kHz, and 200 kHz. You can also select output power from 1 kW, 2 kW, and 3 kW RMS depending on the transducer. Three zoom functions are offered: marker zoom; bottom zoom; and bottom lock expansion; in addition to the standard sounder dispaly mode. There are audio and visual alarms for preset water depth, fish echoes or water temperature.