The DFF3 is a 1/2/3kW, selectable-frequency Digital Black Box Sounder for NavNet, NavNet vx2, and NavNet 3D.
The dual-frequency DFF3 allows you to select any two transducer frequencies between 28kHz and 200kHz. Sounder data is distributed throughout the NavNet network.
Display modes include High or Low Frequency, Dual Frequency (shown here on NavNet 3D display), Zoom, Nav Data, A-Scope, Marker, & Bottom Zoom or Bottom Lock.
Because it is a part of the NavNet network, you will also be able to use your Radar and Chart Plotter features depending on which unit you have.
The sounder itself has a selectable 1, 2 or 3kW output power. You may choose any two operating frequencies from 28 to 200 kHz with FFS (Furuno Free Synthesis) technology. With the powerful DFF3, you can obtain detailed echoes of bottom structure and fish using range scales of up to 3,000 meters (nearly 10,000 feet). And because the Network Sounder is used on a NavNet display, you will also be able to use its Radar and Chart Plotter features depending on which unit you have.
The DFF3 is a direct replacement for the BBFF3 network sounder.
Transducer Plug on back of unit