Radar in the RAAF today is primarily managed by Headquarters Surveillance and Response Group located at RAAF Williamtown, New South Wales, Australia.
http://raafradar.org.au/doc/HQSRG.pdf
Air Defence units are under command of No 41 Wing
http://raafradar.org.au/doc/41WG.pdf
http://raafradar.org.au/doc/3CRU.pdf
http://raafradar.org.au/doc/114MCRU.pdf
http://raafradar.org.au/doc/1RSUv2.pdf
http://raafradar.org.au/doc/SACTU.pdf
Airborne Early Warning and Control is under command of No 42 Wing
http://raafradar.org.au/doc/42WG.pdf
http://raafradar.org.au/doc/2SQN.pdf
Joint Battlefied Airspace Control and Air Traffic Control is under command of No 44 Wing
http://raafradar.org.au/doc/44WG.pdf