DARPA Announces Plan to Create Viable Underwater Radio December 19, 2016/Client: DARPA /by spireco1DARPA Announces Plan to Create Viable Underwater Radio spireco1 https://spirecommunications.com/wp-content/uploads/2017/12/SpireLogo-300x138.png spireco12016-12-19 09:52:362016-12-19 09:52:36DARPA Announces Plan to Create Viable Underwater Radio