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FURUNO Digital Filter (FDF
TM
) Fish Finder
FURUNO’s DFF1 and DFF3 and new BBDS1 feature the FURUNO Digital Filter (FDF
TM
)
technology. These new digital Network Sounders can turn any NavNet display into a
powerful, dual frequency digital fish finder.
The main difference between digital and conventional fish finders
lies in the filtering capabilities and auto adjustments. Our award
winning FDF
TM
technology helps to optimally adjust gain, STC
(Clutter) and output power as well as suppress surface clutter. It also
makes the picture clearer and easier to decipher. However, even the
best digital filter won’t help unless you start with a solid basis, such
as FURUNO’s renowned fish finder technology. This is why FURUNO
has been the best friend of fishermen for generations.
Standard mode:
Only the most prominent bottom category
of the spot will be displayed.
Probability mode:
The proportion of the bottom sediment of
the spot is displayed in graph.
Bottom Discrimination Display (with BBDS1 only)*
NavNet 3D can show the bottom discrimination information from the depth sounder echogram.
Utilizing the new Network Fish Finder BBDS1. Bottom discrimination can be displayed in four
categories. "Rock", "Gravel", "Sand" and "Mud", in either easy to read graphics of color display
modes. The bottom discrimination function provides you with valuable information to help you
locate rich shing grounds to boost the days catch. There are two bottom discrimination diaplay
modes selectable:
* Bottom discrimination display mode can be used in the following conditions:
Water depth: 5 m and deeper**
** Please note, the water depth figures above are a guide only and operational performance may vary depending
on transducer installation technique and the acoustic environment around the vessel.
Rock
Gravel
Sand
Mud
Rock
Gravel
Sand
Mud