A
thirty day membership (not pass) should indeed grant access to the Qantas Club whilst flying Qantas, as it is a full (albeit 30 day) Admirals Club membership. The trick IMO will be to have the information to present at the Qantas Club to convince the agent the thirty day AC
membership is indeed that and not a pass for Admirals Clubs, such as the one day pass.
See the existing thread:
Admirals Club 1 day pass and 30 day membership questions >=2012 (consolidated)