*** Use the comments section below to weigh in with your thoughts. ***
This is a topic that many of us may have never really thought of. And it seems to have quite a bit of debate among anglers.
Sonar uses sound waves as a source of information to be displayed on the screen. This sound wave is sent through the water from your transducer and objects bounce (or reflect) that sound back to the transducer. The amount of time (or distance) that the wave travels will indicated where objects (fish and bottom) are.
So the question is this. Does the sound that is produced negatively affect your fishing? Do you think it spooks certain fish? Or do you think it matters if the water is more shallow and the beam is more concentrated and louder?