DFF3D

[SDH]

I am currently mapping bottom up to 120 fathom 720 feet on TZ and it’s awsome, second to none !! One thing this is missing is the ability to map bottom composition on a scale of 1-10 hardness 1 being mud , 10 being rock . For the life of me I can’t understand why a setup that works so well would not have the capabilities of collecting this data since certain fish prefer certain bottom types !! So my question is, does this unit since it works so well have the capabilities of collecting this maybe with some programming upgrades ? It does have a back scatter function which is one of the fundamental components of bottom discrimination!! Furuno with some minor additions and flexibility options on this I have to say I think you nailed it with this setup !! I have some pictures of some mapping you can send me a email and I can forward them !!

 

[Deep Blue]

SDH,

The DFF3D cannot perform Bottom Discrimination like the BBDS1 or the FCV588, and Bottom Discrimination was only designed to operate in ranges from 16 to 328 feet

However in some cases, the triple beam view on the DFF3D can provide changes in the bottom by looking at the change in bottom tail length and density. Please note that the DFF3D is a Single Frequency Sounder (165khz) and utilizes single wide beam, where Bottom Discrimination needs to use Dual Frequencies (50/200 kHz) and utilizes both the narrow and wide beam widths.

Please see the photo below that shows a change in the bottom tail.

 

[SDH]

So is it possible or impossible for this sounder to spit this data out to be collected by TZ ? Every sounder I’ve used you can see changes in the bottom hardness visually, I mean any sounder that can’t do that in 2019 should be called a fish finder used in a bass boat while recreational fishing !! This is designed to map bottom and does so, better than the wassp !! It should be capable of doing the full Monty !!