Mt Yokine Telstra Radio Terminal Tower next to Channel 7.
Ive looked it up and it seems to mostly about 80% of it is used by the police. i spoke an acma officer and he rekons, that those 3 massive microwave dishes on the top are no longer used and are to dangerous to take down. cant find what all the other towers on the site are for but ill scan some more pics for you.
its about 69 meters tall and seems to have existed in the good old days when telecom was around.