While I don’t doubt that 104.7 Canberra has been a #1 station in the past…
Even though 2CC (which seemed to be running the same “Classic Hits” format 2UW Sydney had at the time) was Canberra’s #1 station for the first survey in 1988? Seems like FM 104.7 took time to establish itself in the market too, as it debuted below KIX, 2CN and 2CA going by this report:
Pretty much. There probably hasn’t been any real competition for radio in Canberra since the ARN/Austereo joint venture was established in 1997.