For those wondering why I am making an acoustic modem and passive/active sonar systems: I need an acoustic modem because I want to control submarine drones deep underwater where traditional RF control does not work, but acoustics travel well. I need a way to send command data to them and maybe even receive (limited) data back. The submarine drones need to be able to "see" underwater using passive sonar so they dont crash into objects or the environment. Active sonar allows the submarines to actively ping and investigate specific objects that might not be easily found with passive sonar. Although using active sonar on a submarine is usually not recommended since it might damage sealife and also gives away the submarine's position, it is still a good feature to have just in case it is ever needed.

LOOK, THE BLACK HOLE IS YOUR EYE, SEE ALL YOUR PROCESSES RUNNING/ATTENTION ON? WE ARENT MEANT TO FOCUS ON MORE THAN 1 THING PER MOMENT THIS IS WHY PEOPLE ACROSS THE WHIRLWIND DO NOT CHANGE, NO ENERGY PRESENTLY. *THAT CLICKED* THANK YOU DR. JOE DISPENZA!