Currently, does ATC have ADSB, or ADSB-2 receivers?
I dunno, you tell me.
As the alleged subject matter expert, Underfire, could you please answer my question: Will TCAS work with ADS-B 2? I cannot be bothered reading that whole document, and that screen grab doesn't remotely say that Australian ATC, or TCAS will not be able to "see" a ADS-B 2 box.