Noise Back News Today

And one of the wonders i have is , do they make any signal back, acoustically, noise back to signal to the sub that we hear their signal. >> is there something in this, based on what we know, that could pick that up? >> you would hear it, youd be surprised if you dont hear it through the sub. sound carries easily in the ocean and the frequency and all that stuff, you would hear it in the sub, tightly. >> your personal friends with one and i wonder if you can speak to what he brings to this now f...