DDF3d depth wrong

[Rickelpickle]

Ive had this problem once b4 where the depth was off by a few feet. Mysteriously it went away. Now today I'm noticing it once again.. its always off by about 3ft. The DFF3D. The 2D depth is correct.. but it messes up my PBG on my charts. Is there a setting that can change this?.

Thanks in advance!!

 

[Rickelpickle]

Does anyone know if there is an offset setting somewhere that could be adjusted?. This is really odd and annoying.

 

[Johnny Electron]

That is some serious turbulence being seen on the multibeam. Transducer placement might be an issue or the boat is going to fast or something. @Deep Blue is on the road this week but maybe he can provide his thoughts when he returns. If you have more videos and maybe screenshots of your sensor list and settings it might be helpful to pin it down better.

 

[Rickelpickle]

Thanks Johnny Electron for the reply.
Yes. Its was very rough out and I was doing 20-21mph in 2-3'. It normally looks much nicer. I will get some video and pics of sensor list and settings.

 

[Johnny Electron]

I don't recommend the DFF3D for less than 30ft of water regardless of speed.