Modern Humminbird sonar, left, identifies lake depth with a color selection system, while Mega-360 sonar imaging, right, provides a 360-degree view of bottom structure and fish all around the boat.

Side imaging fish finders have found their way into every tournament angler’s boat. The ability to scan for structure, weed edges, and fish helps anglers stay dialed. Side imaging works similarly to ...

EUFAULA, Ala. -- Side-imaging sonar, technology used to locate the wreckage of the Titanic deep in the North Atlantic, is now available to anglers who just want to find a good fishing hole. Such ...

Electronic fish finders have been standard gear on fishing boats for years. In the past two years, a new generation of high-frequency sonar has given anglers a different view of what’s below — and to ...

RACINE - The U.S. Patent and Trademark Office has granted Johnson Outdoors a patent for the Humminbird Side Imaging technology. The approved patent protects Humminbird's Side Imaging sonar systems ...