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 ...

Humminbird's transducer unit, only six inches long and weighing only a few ounces, can be mounted to either the front or rear of a regular fishing boat. Developed in the 1960s, side-imaging sonar ...

After buying a fishing kayak, paddle, and life vest, the next logical step for most anglers is adding a kayak fish finder. Some anglers want only a compact or portable fish finder with limited ...

Side-scan sonar can reveal a clear picture of seafloors and many underwater worlds. With affordable devices, it's now serving scientists, law enforcement and hobbyists alike. In late December, Jeremy ...

Typically, colored sonar emits sound at around 200 kilohertz (kHz), and down- and side-imaging transducers emit sound at around 455 kHz, 800 kHz or 1,200 kHz (also known as 1.2 megahertz, hence the ...

Klein Marine Systems, Inc.'s System 4900 Dual-Frequency Side Scan Sonar is a versatile Side Scan Sonar that can be used for many different survey and recovery applications. The high fidelity, ...

Side imaging units have become standard equipment on the boats of the Bassmaster Elite Series pros. "Going without one would be like going without a trolling motor," says Alabama pro Tim Horton, who ...