DFF3 1,000-3,000 Watt Sounder Black Box
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 Digital replacement for the Analog BBFF3 network sounder.