I was on a Qantas A332 a few months ago. I noticed the ADF selectors are now labelled as "DEACT". Why do they do that?
Possibly they removed the ADF's from the aircraft or were never shipped with them in the first place. Will depend on what the OZ CAA's requirements are for carrying them. With GPS now ADF's are dying off. Just an additional cost to maintain and certify but add little these days. On an airbus we can do a fully managed non precision approach using the GPS in much the same way as you would an ILS to a much higher degree of accuracy than if we were doing it raw data trying to follow an ADF needle.