Furuno 3D

[CQuestII]

I have 3 TZ2 units on the boat with the DFF3D with thru hull with fairing transducer. I have had the unit for quite some time but never got it to work as it should. When I use the 3D screen it always looks like I am running down a mountain range with no distinction of the actual bottom terrain. Like wise I cannot seem to get the single beam or 3 beam to work very well so I typically just use the traditional B260 1KW sounder built in to the TZ2 units. I have attached a couple photos of what I am seeing any help is appreciated.

 

[CQuestII]

These are shots from my TZ2 screens with DFF3d unit with the thru hull transducer. It always looks like I am running down a ridge when in 3d mode. The 3 beam works but does not really work very good so I always resort back to traditional sounder with B260 1kw using built in sounder.

Any help with tuning or how to get better results? I am currentlly running in manual mode but the range seems odd and not sure how to adjust on 3d screen.

 

[Snips]

CQuestII,
The most common cause for this is that shield on the transducer cable is not grounded properly under the metal cable clamp in the DFF3D module. Multi-beam systems (WASSP & DFF3D) are very susceptible to external noise and proper grounding is the key for good performance.

Snips

 

[CQuestII]

Ok I will check that out and let you know.

Thanks Tom

 

[CQuestII]

Snips....You were dead on it was the transducer ground. Now do you have any advice on how to adjust so I can see the bottom when running? It washes out even if I am at 80 percent gain in manual mode.

Thanks Tom

 

[Snips]

CQuestII,
If it is speed related it is most likely turbulence. If you have trim tabs you can try varying the boats pitch to see if that helps.

Snips

 

[CQuestII]

Ok Thanks.