Sensis Corporation's wide area multilateration (WAM) system is now operational over Tasmania, Australia, after receiving safety case approval from the Civil Aviation Safety Authority.
The system will use multilateration and Automatic Dependent Surveillance – broadcast to provide Airservices Australia with enhanced en route surveillance of air traffic at Hobart International Airport and Launceston Airport.
The WAM system will provide seamless cooperative surveillance coverage between Launceston and Hobart Airports, with accurate coverage of 150m from the ground level at the airports to 18,000ft.
The surveillance data will be sent to the Melbourne Air Traffic Control Centre, where it will provide controllers with information to implement five nautical miles of separation.
Sensis WAM uses multiple low-maintenance, non-rotating sensors to triangulate aircraft location based on transponder signals to provide air traffic controllers with precise aircraft positions.