ABSTRACT

Electronic navigational aids have undergone some significant changes in recent times. The UK MF radiobeacon service closed in February 1999 and the Decca Navigator system closed on 31 March 2000, with an updated Loran-C system taking its place. A new global satellite navigation system known as Galileo is currently being developed in Europe. With effect from 1 July 2002 SOLAS Regulations require that vessels carry a Global Navigation Satellite System (GNSS) receiver. This chapter aims to give an overview of some of the more recent satellite and terrestrial systems.