Sonar Examples News Today

Ocean. you use a hydrophone just like you would a microphone to be able to listen to it under water. >> this has to be how close to that ping? >> about five miles. >> so thats a widespread area youre talking about. so thats the hydrophone. this is what you start with when you still have the ping for a few more days. the other option is the sonar, what they would go to second. and these are two options that are sonar examples. >> right. the hydro is listening for the ping. this going to emit soun...