Quote Originally Posted by SLYDoggie View Post
Your latest image is a lot better. Are the white dots you are talking about the lighter areas all along the bottom transition from the water column? If so, you will tend to get more of that type of return on harder bottoms. Sometimes the contrast setting will tune those out or reduce them.

Also, make sure your transducer is parallel with the water surface. That will have a big impact on the quality of the returns. There are some good videos on YouTube for this topic. Search for "transducer level coin".
I leveled my transducer using the coin method, worked great, but I'll check the level again. Yes, those are the the dots I was referring to, I posted another picture this time using down scan which is a better example. This particular lake has a sandy bottom, not sure how hard it was in this screenshot. I adjusted the contrast, those lines didn't go away. This was occurring before the upgrade to 3.98, nothing else changed with my setup.

Again it doesn't appear to be affecting things, just didn't know if there was a problem with my setup.

Snap 2.jpg