I suspect the ACMA site has the wrong document link.
Info here:
https://www.acma.gov.au/theACMA/aero...ces-guidelines
It should probably be this form:
https://www.acma.gov.au/-/media/Lice...ocx.docx?la=en
But check with Radiocommunications Licensing and Assignments Section, ACMA:
[email protected]