Thread: What am I seeing???

Granted I am still "green" at using all the bells and whistles on a DF, but I seem to get this image quite a bit. I do get some of the "arch" indicators at times but many times it this. My transducer is located on the bottom of the trolling motor so I thought it might just be picking up some of the bubbles, etc from when I am trolling, but it seems to do this when the TM is not running as well. Is this a settings problem or do I have something else going on? TM and DF are on two seperate batteries, but are attached to the same wiring block in the front if that makes a difference? Thanks in advance for advice.