With skillful use of new sonar technologies, anglers can find fish like never before. Here's how to make it work for you.

Sliver-blue is the choice today as we troll for salmon using the American Smelt crankbaits. The key strategy today is to vary the speed by about 1mph and slowly troll in an s-pattern. The s-pattern ...

Abstract: Ultrasonic motors are known as actuators that use ultrasonic vibration. Actuation force is induced though friction, which causes wear and damage on sliding parts, resulting in a shortened ...