The sonar room is dominated by sonar consoles. Two modes of sonar observation are used. In the "active" mode, the echoes of sound waves sent out from the sub are timed and analyzed.

Green groups are concerned that the construction of a practice range in the Atlantic Ocean where US sailors can learn to find and track submarines with sonar will destroy the coral bottom that ...

BEIJING (AP) — Australia has accused the Chinese navy of likely causing minor injuries to Australian naval divers by operating its sonar while they were trying to clear fishing nets from their ...

Australia's leader criticizes China over its warship's use of sonar that injured a naval diver ...

BEIJING (AP) — Australia has accused the Chinese navy of likely causing minor injuries to Australian naval divers by operating its sonar while they were trying to clear fishing nets from their ...

BEIJING (AP) — Australia has accused the Chinese navy of likely causing minor injuries to Australian naval divers by operating its sonar while they were trying to clear fishing nets from their ...