Visual E/W and Aural N/S was the way of Kalgoorlie
Visual to Perth and Forrest
Aural to Norseman and Laverton (or Leonora?)
Good route check stuff for me from Norseman on the aural.
I think there was another in the NT and some on the East coast which were different as the prime routes had the Visual.
My time on the DC-3 did not send me too far afield, they were stopped in June 1968 anyway except for the occasional freighter which luckily came my way from time to time
I found an Australian DME unit in my box of memories, all 12 channels of selection!!!