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To all: A milestone has just been reached in the quest for underwater voice communications. A special underwater speaker comprised of a tranducer for solids has been made that so far looks as if it can be lowered the 500' we are looking for. The goal was to be able to talk boat to boat while both are submerged at 150' deep and 150' apart. Although it is not intended to function down to the full 500', it must withstand the pressure this far down and come up shallower and still work reliably. Frank D. is building a pressure chamber and will test this speaker once further testing is completed here in TN. This initial underwater speaker is a key component to Franks passive sonar/underwater communications console. Other simular communications system are presently under construction with completions and installs soon to follow. David Bartsch See how Windows connects the people, information, and fun that are part of your life. See Now |