Airservices has commissioned a new terminal area radar near Cairns Airport which will enhance surveillance of aircraft in the airspace around the airport. The $5.5 million upgrade is part of a $90 million modernisation program being carried out by Airservices to ensure the safe and efficient movement of air traffic in Australian airspace. The radar replaces radar equipment installed in 1992 and includes an improved solid state primary radar with a 60nm (111km) range and a Mode S (select) capable Monopulse Secondary Surveillance Radar with a range of up to 256nm (474km).