Automatic Identification System (AIS) is a maritime navigation and radio communication system. This system intends to enhance the safety of life at sea, the safety and efficiency of navigation and the protection of the marine environment by communicating navigational information automatically on VHF channels between ship to ship and ship to shore. JHS-183 meets the requirements of the SOLAS Conventions for the Class A shipborne equipment of the universal AIS. JHS-183 mainly consists of AIS Transponder, Connection Box and AIS Controller. The combined antenna and transponder design allows installation at any convenient location on any vessel. The small and simple design controller allows easy installation and operation. JHS-183 employs the latest technologies such as digital signal processing, circuit integration technology, complies ensure high performance and high reliability.