An automatic tracking system used on ships and by vessel traffic services (VTS) for identifying and locating vessels.
A radio beacon in the mobile service the emissions of which are intended to facilitate search and rescue operations (EPIRB).
Is a communication system.
A current limiter that limits the power (energy) which can be delivered from a safe area into a hazardous area.
A very accurate flow meter used to record oil exports.
A post or buoy placed over a shoal or bank to warn vessels, also a signal mark on land.
Is an alarm system.
A physical object for detecting the presence of objects at a distance, or ascertaining their position or motion, by transmitting short radio waves and detecting or measuring their return after being reflected.
A radio transmitter, usually non-directional, that emits identifiable signals intended for radio direction-finding.
Is a piece of hardware intended to read and decode information encoded on a carrier.
A system that provides voice and telefax communication via satellites.