Since the first sonar flashers were introduced decades ago, all fish finders work on the same principle. There are three main components of a fish finder: display, transducer, and battery. The ...

There are two mounting decisions involved with many fish finders: where to mount the display and where to mount the sonar transducer unit. Mounting the display is generally the easier of the two, as ...

Today’s fish finders and marine mapping systems are light-years ahead of those available just a few years ago, and in some cases, the pricing matches those advances. I’ve often simultaneously lamented ...