This video addresses the differences between 2D sonar many of us are familiar with to Down Imaging technology that is now commonplace on many popular fishfinders. Jeff “Kolo” Kolodzinski provides a basic overview of each technology, how they function and what you see on your screen. He displays both simultaneously so you can make a quick reference as to what fish look like on each, and most importantly, understand when and how to use both technologies to better interpret what lies below the boat.
Check out Jeff’s comprehensive Sonar Interpretation Video for a breakdown on all of the major fishfinder technologies and when to use them.
And this cool video that digs deeper into interpreting 2D CHIRP sonar and watching the fish swim in real-time below the transducer.