Helix ?

[Crankinh20]

• Helix 7 mega di
  
  
  I installed new mega unit on bow I am using
  xtm 9 hw mdi 75 t external transducer on ultrex.
  Problem is when I am on 2d it shows bottom
  as zig zag 3/4 inch up and down. I have it plugged into
  bus block under bow on ranger rt 188 it s only supposed to draw only
  800 mill amps . Is it not getting enough power or ground?
  one other thing I have excess transducer cable rolled up in foot tray is that ok.
  Also excess power cable rolled up under deck .
  Just put ultrex on boat the gps puck is on bow center next to
  trolling motor if that makes a difference maybe interference?
  J. D.
  
  
  
  
  
  
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[FlFedAngler]

Might want to ask this in the Humminbird Forum.

[Real L]

It might just be waves if it was a windy day.

[SoonerFan]

It might just be waves if it was a windy day.

This +1