Increase DFF3d Beam Coverage

[SpineyNole]

The current DFF3d scans 40 - 3 degree sonar beams for a total of 120 degrees of beam coverage (60 degrees to each side underneath the boat). It would be advantageous to increase this coverage to say 80 degrees each side (160 degree total) to increase the bottom coverage in shallower water, and make the DFF3D more applicable when compared to competitor's sidescan. That would make the DFF3D a truly universal sonar solution!

 

[Magnetron]

The current DFF3d scans 40 - 3 degree sonar beams for a total of 120 degrees of beam coverage (60 degrees to each side underneath the boat). It would be advantageous to increase this coverage to say 80 degrees each side (160 degree total) to increase the bottom coverage in shallower water, and make the DFF3D more applicable when compared to competitor's sidescan.** That would make the DFF3D a truly universal sonar solution!

DFF3D / TZT3 Customers should enjoy our new side scan offering which will help enhance their existing multibeam experience with an even much wider offering for fishing those shadows in even shallower water (with the slightly higher frequency new SS-904s).

**Note, the DFF3D and Side scan are fundamentally different technologies. The DFF3D is a "Multibeam Product" so the side scan produced from the DFF3D is made by the two outer beam edges of two of the three down-scan beams; whereas dedicated side scan will omit down scan returns entirely as it only shoots out to the side and cannot see down.

So hopefully there's room for both multibeam downscan and side scan

Hope this helps, :sail

- Maggy

 

[SpineyNole]

The current DFF3d scans 40 - 3 degree sonar beams for a total of 120 degrees of beam coverage (60 degrees to each side underneath the boat). It would be advantageous to increase this coverage to say 80 degrees each side (160 degree total) to increase the bottom coverage in shallower water, and make the DFF3D more applicable when compared to competitor's sidescan.** That would make the DFF3D a truly universal sonar solution!

DFF3D / TZT3 Customers should enjoy our new side scan offering which will help enhance their existing multibeam experience with an even much wider offering for fishing those shadows in even shallower water (with the slightly higher frequency new SS-904s).

**Note, the DFF3D and Side scan are fundamentally different technologies. The DFF3D is a "Multibeam Product" so the side scan produced from the DFF3D is made by the two outer beam edges of two of the three down-scan beams; whereas dedicated side scan will omit down scan returns entirely as it only shoots out to the side and cannot see down.

So hopefully there's room for both multibeam downscan and side scan

Hope this helps, :sail

- Maggy

Thank you for your reply. In my opinion, DFF3D is a superior technology that forms multiple beams (supports multiple measurements per ping), uses a lower frequency (supporting longer range), and has higher transmitted power. If the beam coverage could be broadened, the DFF3D's applicability to shallower depths would be greatly increased. In my case, I would use the DFF3D to detect structure and fish. I would gladly trade resolution (identification capability) for increased detection range and bottom coverage at shallower depths. While having both DFF3D and CHIRP sidescan would be nice, its hard to fit both on most installations. Unless I am mistaken, to have both along with traditional sonar would require two MFDs or an extra blackbox in addition to the DFF3D.

 

[jp498]

That would make the DFF3D a truly universal sonar solution!

Universal is big language, unless you mean it's universal because it's immersed in "universal solvent".

DFF3D is very nice, but there is no substitute for a scanning sonar for watching the surface.
Consider even if the DFF3D scanned closer to the surface, it would be a narrow band, where a sonar searches all around the boat, or a defined shape of coverage.

 

[Magnetron]

Unless I am mistaken, to have both along with traditional sonar would require two MFDs or an extra blackbox in addition to the DFF3D.

Let's assume, for the sake of conversation, that "sonar" is referring to something fairly significant (CH500/CH600/CSH8L/etc.). If we're just talking about a fish finders and multibeam DFF3D. To get Furuno's new side-scan and a DFF3D, you just need a boat :cool plus 1x TZT3 (12"/16"/19") for the side-scan transducer, A DFF3D sounder box, a good heading sensor and GPS like the SCX20, with the DFF3D 165 kHz transducer mounted either at midships (through-hull) or on the transom, and the Side-Scan SS-904 transducer mounted either slightly up forward, mounted side-by-side, or mounted on the transom.

So no, to get it all doesn't require a larger boat or an unwieldly extra amount of stuff.

- Maggy

 

[SpineyNole]

Unless I am mistaken, to have both along with traditional sonar would require two MFDs or an extra blackbox in addition to the DFF3D.

Let's assume, for the sake of conversation, that "sonar" is referring to something fairly significant (CH500/CH600/CSH8L/etc.). If we're just talking about a fish finders and multibeam DFF3D. To get Furuno's new side-scan and a DFF3D, you just need a boat :cool plus 1x TZT3 (12"/16"/19") for the side-scan transducer, A DFF3D sounder box, a good heading sensor and GPS like the SCX20, with the DFF3D 165 kHz transducer mounted either at midships (through-hull) or on the transom, and the Side-Scan SS-904 transducer mounted either slightly up forward, mounted side-by-side, or mounted on the transom.

So no, to get it all doesn't require a larger boat or an unwieldly extra amount of stuff.

- Maggy

To get a traditional chirp sonar along with the multi-beam DFF3D and CHIRP sidescan would require and extra MFD or black box. :noway