Furuno DFF1-UHD Brochure

www.FurunoUSA.com

Display Modes

Frequency

Range Scale

Range Phasing

Accu-Fish

Bottom Discrimination

Temperature

Waterproofing

Power Supply

DFF1-UHD SPECIFICATIONS

Single (High or Low frequency), Dual (both High & Low frequencies), Bottom-Lock, Bottom-Zoom, Bottom Discrimination,

Marker Zoom (NavNet 3D only), A-Scope

Dual-frequency Broadband CHIRP
50 kHz +/- 20 kHz, 200 kHz +/- 25 kHz

Max. 1,200m

Up to 2,400 m (8,000 ft., 1,300 fa.)

Available

Available

-15°C to +55°C

IEC 60529 IP20

12-24 VDC

Furuno DFF1-UHD

TruEcho CHIRP Fish Finder

The Clear Evolution Of CHIRP!

Dimensions

3.5 kg 7.7 lb

6 0.24"

2-ø6

320 12.6"

348 13.7"

380 15"

Interconnection Diagram

DFF1-UHD

or

2-R3
2-ø16

12

0.47"

HUB

185 7.3"

60 2.4"

(max. 6)

120 4.7"

NavNet series
(TZtouch/3D)

Compatible with these AIRMAR Broadband Transducers:

CM265LH B265LH

Note: The DFf1-UHD is not compatible with LM (low/medium) Frequency Transducers.

PM265LH

Visit www.FurunoUSA.com to find:

➤ Training Videos ➤ Tips & Tricks Videos

➤ Articles ➤ Software Updates

➤ Learning Center ➤ User Forum

Rectifier

Transducer with
temp sensor

CM265LH
B265LH
PM265LH

DC12-24V

AC100/110/
220/230V

Speed/Temperature sensor

ST-02MSB
ST-02PSB

Temperature sensor

T-02MTB/MSB
T-03MSB

Standard Option or Local Supply

Specifications subject to change without notice. All brand and product names are registered trademarks or
service marks of their respective holders.

Meet the Furuno DFF1-UHD TruEcho CHIRP Fish Finder, developed exclusively for the

award-winning NavNet 3D and NavNet TZtouch Multi Function Display systems. The

DFF1-UHD presents a huge step forward in sh nding technology, offering serious

shermen the ultimate in underwater detail, precision and clarity.

Furuno’s TruEcho CHIRP fuses the very latest CHIRP technology with Bottom Discrim-

ination and Accu-Fish, bringing you the next evolution of CHIRP Fish Finders. Enjoy

eye-popping target denition. Reveal the sea oor’s structure and composition. Unlock

sophisticated sh size and depth information. Whether you are a commercial or sport

sherman, TruEcho CHIRP will help put more sh in your boat!

Furuno TruEcho CHIRP - So much more than just a CHIRP Fish Finder!

When is a CHIRP Fish Finder not just another CHIRP Fish Finder? When it’s Furuno’s TruEcho CHIRP!

Designed to sweep across 90 frequencies utilizing a CHIRP transducer, the new DFF1-UHD delivers pro­fessional grade sh nding technology into a network Fish Finder.

Why CHIRP?

CHIRP Fish Finders mark individual game sh and bait sh, even when tightly schooled together or near

the sea oor. Standard, non‐CHIRP Fish Finders operate at one or two individual frequencies and are

generally capable of detecting targets and displaying them

only within those narrow frequency bands. CHIRP Fish Find-

ers transmit pulses across a wide range of frequencies. The

DFF1-UHD uses a precise sweep pattern across 90 frequen-

cies (50 kHz +/- 20 kHz, 200 kHz +/- 25 kHz) within a long‐

duration transmission. This allows Furuno’s superior Digital

Signal Processing (DSP) to display targets with unparalleled

clarity, accuracy and resolution. You will also benet from

better shallow water performance, tracking of the bottom,

and improved detection of thermoclines.

Why Furuno’s TruEcho CHIRP?

Furuno’s TruEcho CHIRP Fish Finder is based on completely new technology utilizing broadband CHIRP transducers. The

sound energy transmitted by the DFF1-UHD into the water is up to 1,000 times greater than a conventional

Fish Finder, resulting in more energy on the target. Utilizing our Furuno Digital Filter (FDF) signal processing

results in up to 5x greater resolution and depth capability than comparably powered standard Fish Find-

ers. Furuno is evolving CHIRP technology to the next level by adding unique capabilities, such as Bottom

Discrimination and Accu-Fish.

Bottom Discrimination provides detailed graphical information about the make-up of the sea oor. This

is accomplished by placing the bottom into one of four classications; Rocks, Gravel, Sand, and Mud.

Knowing the make-up of the bottom provides valuable information that will help you locate rich shing

grounds, potential hazards, and even good anchoring spots. The bottom details are shown on the

screen in either a graphical representation or probability graph.

Rocks

Gravel

Rocks

Gravel

Benefits of CHIRP Technology

Scans across a range of frequencies

➤

Enhanced depth penetration, resolution & clarity

➤

Precise separation between bait sh and game sh

➤

Enhanced ability to distinguish targets from noise

➤

using improved signal to noise ratio

Improved bottom tracking at high speeds

➤

Vastly improved shallow water performance

➤
➤

Reveals more sh by eliminating surface clutter & noise

Sand

Mud

Graphic mode
The standard graphic display mode shows the most
probable bottom composition graphically as shown above.

Please keep the following in mind when using the Bottom Discrimination Sounder:

1) Use at a depth of 5 m - 150 m.

2) Use an approved transducer.

3) To show a consistent display of the actual bottom, set the range display of the Fish Finder screen to “auto”.

4) Enter the ship’s draft value

5) Use a ship speed of 10 knots or less.

6) In some instances, bottom component indicated on the display may differ slightly from its actual bottom structure.

Accu-Fish is a revolutionary sh size

assessment function that can tell you

the approximate size of the sh below

your boat. Fish symbols appear on the

screen, along with the size of the sh or the depth where

it found the sh.

It can detect sh

size from 4 inches

up to about 6 feet

long, in depths of

7 feet to well over

300 feet of water.

Sand

Mud

Probability mode
The probability display mode shows the most
probable bottom composition in graph form.