Sorry this is taking this more radio history, feel free to move it to the Radio History Forum.
It was 1994 when I remember the Always Great Rock and Roll era of NXfm. Rock music seemed to be the most popular format of the time on commercial radio. Even 92.9 Fm Tamworth was running the same format and Positioner.
From memory the Austero stations at the time all had a hybrid rock top 40 format, 2Day played more soft rock as they were in a slanging match with Triple M and promised no heavy rock. They still played Screaming Jet, and the odd song by the Doors, and Midnight Oil. B105 played more heavier rock and more classic rock then 2Day.
NX Fm and Fm 104.7 were more grungy, and Fm 104.7 was the last to depart from their rock format.
Re Don Dawkins he then moved to Canberra to Fm104.7, and then to 2CA before retiring?