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/1RSU.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   

Air Traffic Control is under command of No 44 Wing
 http://raafradar.org.au/doc/44WG.pdf