AIS Automatic Identification System

Last edited 2010.06.22

AIS Automatic Identification System.jpg

Jotron have since 2004 produced Automatic Identification System (AIS). AIS is a broadcast communication system operating in the VHF maritime band, capable of sending ship information to other ships and to shore. The Jotron AIS program consists of a full shipborne unit (TR-2500), a receiver only unit (RA-2500) and a base station unit (TR-2600). 

Jotron´s AIS systems:

- Tron UAIS TR-2500: VHF transponder exchanging ship information between ships
- AIS receiver RA-2600: VHF receiver monitors ship information within VHF range
- Tron AIS TR-2600: Base station controller - coastal surveillance system
- AIS Viewer: Software program presents data from transponder and receiver to PC

Purpose of AIS
• Automatic swap of navigational information on ship’s movements to predict dangerous situations
• Automatic swap of static information to facilitate ship-to-ship communication
• Interface to ship’s navigational equipment to increase information value

Implementation schedule of AIS
All newbuilds must be fitted with AIS after July 1st 2002.
Existing ships engaged in international voyage constructed before July 1st 2002 must be fitted according to the following time table:
• In the case of passenger ships, not later than July 1, 2003
• In the case of tankers, not later than the first safety equipment survey, after July 1, 2003
• In the case of ships, other than passenger ships and tankers, of 50,000 gross tonnage and upwards, not later than July 1, 2004
• In the case of ships, other than passenger ships and tankers, of 300 gross tonnage and upwards, but less than 50,000 gross tonnage, not later than the first safety equipment survey after July 1, 2004 or by December 31, 2004 whichever occurs earlier
• Ships not engaged on international voyages constructed before 1 July 2002, not  later than

Links to more information of AIS: www.uais.org

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