AIS basestations are primarily used ashore for traffic monitoring and management purposes, e.g. by Vessel Traffic Services (VTS). Due to the EU Directive 2002/59/EC of 27 June 2002 establishing a Community vessel traffic monitoring and information system, all member states bordering the sea are required to set up AIS basestations for collecting maritime traffic information. Similar systems are presently being built up in other parts of the world. In this context it is of interest, how many mobile and stationary AIS systems can be received by a single shore-based ‘physical AIS base station’. AIS CapCalc will provide the answer for user-defined traffic scenarios.
A more detailed calculation scheme including the most significant of the remaining message types, e.g. Class-B AIS, ATON AIS, SAR AIS, experimental Binary Messages is available from the author in form of an Excel spread sheet (AIS CapCalc E). Please ask the author for the conditions.
Ingo Harre, Bremen, Germany, Content last modified on 2009/04/25