CCTV

CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. CCTV relies on strategic placement of cameras, and observation of the camera’s input on monitors somewhere. CCTV systems may operate Read more…

Automatic Identification System

The Automatic Identification System (AIS) is an automatic tracking system used by ships and vessel traffic services (VTS) for identifying and locating vessels by electronically exchanging data with other nearby ships, AIS base stations, and satellites. When satellites are used to detect AIS signatures, the term Satellite-AIS (S-AIS) is used. AIS Read more…

Radar

Radar is an object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio waves or Read more…

VTS / VTMS

Vessel traffic services – VTS – are shore-side systems, which range from the provision of simple information messages to ships, such as position of other traffic or meteorological hazard warnings, to extensive management of traffic within a port or waterway. Read more…

MF/HF

MF/HF RT radio is often called an SSB radio. It is a transmitting-receiving system often referred to as a Transceiver (Tx/Rx), which allows the operator to either transmit or receive information by voice. MF/HF radios use SSB (single sideband) modulation for voice communication. The same Read more…

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