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.

Live sonar helps crappie anglers catch fish, but the Arkansas Game and Fish Commission says it does not increase crappie harvest. Andy Yung, district fisheries biologist for the Game and Fish ...

Helm space is the most valuable real estate on board, and to get the most navigation gear for the space, choosing from these multifunction displays with integrated sonar is key. These touchscreen ...

A civilian contractor steadies a M18 Mod 2 Kingfish Unmanned Underwater Vehicle (UUV) as it is lifted with a crane onto the deck of an 11-meter rigid-hull inflatable boat. The Kingfish uses side scan ...