Triadic. Sounds sensible. CASA are not considering going to the proven simple North American system .
The paper proposes two types of half wound back system.
If a simpler system works around the world with far higher traffic densities you would wonder why it wouldn't work here.
Minds are set in concrete. No wonder the morale is so low. I wonder why the Board does not ask why we just can't harmonise with the simplest.
In our present system flying VFR you can monitor hundreds of calls that have no importance.