DFF1/B256 thruhull - settings and questions

[Wanabe99]

DFF1/B256 thruhull
can someone tell me why the double blue area and if it can be fixed? i am enclosing pic and settings .. sorry for the pic size .. not to good at this

I dont understand the noise and the wide red top .. then blue (Water) then red then blue etc Settings enclosed please let me know if i can make this better? it gets better in deeper water ... i am in south florida and fish from 15-2500ft

ill add pic to reply also .. it wont let me add more

 

[Snips]

Wanabe99,
Thank you for adding pictures of your settings. Below are a couple of suggestions.
A-Scope, Zoom line and High res all off.
Screen advance at 1/1
Transducer draft 0ft
Heave correction off
Interference rejection medium
TX Rate Mode manual 20

Hope these help

Snips

 

[Wanabe99]

ty, i will try these ..