Furuno DFF3d

After a number of setbacks with the boat and installing a new fuel tank I finally got out to play with the new Furuno DFF3d setup.

Is a really different look and takes a bit to get used to after using the traditional Furuno sounder.

1st pic is the 3d view and the 2nd is the same ground in traditional sounder view.

The 3d view really lets you understand where the boat is in relation to the structure.

Picture 3 really highlights this with a mix of traditional, 3d and triple beam.

You can see the lumps on the traditional screen but the 3d shows that the lumps are positioned in different lines to the boat.

The triple beam gives you 3 differrent cones and allows you to tell if the better return is on the port starboard or under the boat.

Plan to play a lot more with this especially out around 180-200m so will be interesting to see how it goes.


Thought I would share some pics from the weekend. Finally got out deeper after a heap of rework on the boat and electronics. 

The furuno DFF3d was working in 200m+ at 20 knots. Very impressed with that as I still need to worek on settings.

Image Upload: 

Alpha's picture

Posts: 194

Date Joined: 13/02/17

That's Impressive

Thu, 2020-06-25 20:13

 That looks Awsome Tim. I realy like the Furuno gear unfortantly my boat came with lowrance so im sort of stuck at the moment. 

The 3d image in pic 1 are you looking at roughly 30metres each side of the boat like side scan? but the build of the image looks so much better. And what transducer do they run ie 1kw 2kw? , chirp? 

Tim's picture

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Date Joined: 26/09/06


Thu, 2020-06-25 20:27

The transducer is a 165khz TM54 and has 120 deg beam total. Thats roughly 40m each side

You can actually adjust beam angle and width.Not sure of power but wouldnt be a 1kw. Is similar to the tm260 in size but also has a built in stabilizer.

That first pic is in nearly 50m. Havent seen any photos from other brands that deep so not sure how it compares.


big john's picture

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Fri, 2020-06-26 09:02

 Looks good, 7 - 10K?


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Tim's picture

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There abouts BJ

Fri, 2020-06-26 10:34

There abouts BJ 

NORUN NOFUN's picture

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Fri, 2020-06-26 09:09


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Date Joined: 11/12/11


Fri, 2020-06-26 09:39

The bottom pic shows no fish on the 3d? just shows the structure. It is a lot of data to process in a short time to display on the screen. What is the estimated cost for a 3d set up like yours? Do you have a vga/USB/HDMI input in the furuno units?  

Tim's picture

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Date Joined: 26/09/06


Fri, 2020-06-26 10:40

Cost will depend if you have a screen already or not.

Probably 11 -12k for the full set up.

Has these inputs on th TZ2 - Ethernet 100 BASE-TX, IEEE802.11B 2.4gHz Wireless LAN. 1 x USB 2.0 Port. 1 x HDMI Video Out. 2 x NTSC/PAL video in ports

The new TZ3 screen has HDMI in.

The DFF3d processor unit connects over LAN to the screen to enable the amount of data required to be transferred.

Posts: 5981

Date Joined: 17/06/10

Ok the space technology is here

Fri, 2020-06-26 11:36

It would take me longer than i have left just to know how to turn it on.

Great pictures  arrrh boys with sofisticated toys great stuff 

Rick's picture

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Sat, 2020-06-27 22:03

Was an impressive test run, reading at 40 knots  


PGFC Member


cammmo's picture

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Date Joined: 14/05/09

 Very nice.I just purchased

Tue, 2020-07-28 14:50

 Very nice.

I just purchased DFF3D and TZ3 16" - played with the unit in demo from lounge room. 
Can't wait to use it! Still waiting for boat to Arrive.


I've chosen to add the Satalite compass to give heading accuracy and heave compensation.

40knts? This accurate!? 
I chose pocket mount combo transducer 165T/ 265LH - PM488. 

have you had it out since? Any deeper? 

Tim's picture

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Date Joined: 26/09/06


Tue, 2020-07-28 18:40

Nope havent been out again. Had some surgery that has me laid up for a while. Yep the TM transducer was still reading at 40 knots. Solid bottom picture but did have clutter though 

Have the boat in atm changing to a B54 fairing block transducer and adding a fairing block B265 chirp transducer to go with it.

Sat compass is coming for the setup as well. Will make a difference


Tim's picture

Posts: 2497

Date Joined: 26/09/06


Tue, 2021-04-20 19:04

Finally got some pics of the 3d deeper. You effectively have side scan in 200m+

Is interesting to compare the traditional pic to the 3d and how you may interprate the bottom.