luckylaker
Sonar (sound navigation and ranging) is a technology that uses acoustical waves to sense the location of objects in the water. The simplest sonar devices send out a sound pulse from a transducer, and then precisely measure the time it takes for the sound pulses to be reflected back to the transducer. The distance to an object can be calculated using this time difference and the speed of sound in the water (approximately 1,500 meters per second).Amazing sonar tech now in the hands of any angler.