https://www.engineersaustralia.org.au/

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Historic Engineering Marker Perth Wireless station On 30 September 1912, eighteen years after Marconi's first radio experiments, the Australian Postmaster General's department commissioned this coastal radio station. Equipped with a telefunken 25KW quenched-spark long-wave transmitter, coupled to a 120 metre high guyed aerial. It established the first direct radio telegraphic communication across the continent and maintained contact with shipping. Between 1922 and its 1967 decommissioning, it also linked Australia to the world by short-wave radio.

Wireless Hill Park, Ardross, Australia