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Scuba
Transmitter tech opens the door to underwater radio

Transmitter tech opens the door to underwater radio

Engadget - Jon Fingas

Ultra-low-frequency waves allow communication in places where conventional wireless doesn't work. It's easy to take modern wireless communication for granted above ground, but it's useless in areas where the signals can't propagate, like underwater or in caves. DARPA might have a better way: its …

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