Kaz. It's clear most pilots are not following the current CASA rules.
That is they are not using the ATC frequency to give circuit calls at non mapped airports.
Do you reckon CASA rules should be complied with. Or doesn't it matter.
And what's wrong with a simpler system if it's safe and if it works ?
And you can still listen to the big ones. Simply monitor the nearest ATC outlet if you want to .