ALSEAMAR X-SUB buoys allow submarines to communicate with above the sea’s surface without raising a periscopic communications antenna. The submarine continues its course, undetectable at its operational depth.
The X-SUB buoy is a device released via the standard ejector (sippican). The buoy then rises to the surface and remains connected to the submarine by a wire connection.
The buoy acquires the GPS and the AIS positions, which are transmitted to the submarine. The GPS and the AIS positions are visible on board the submarine on a designated operating unit screen.
Once the wire connection is broken, the buoy automatically scuttles and sinks.