If a VFR bugsmasha is taxiing for take off out of ‘Sandlewood Park’, about 15 nms to the West of Mildura – not in ERSA and not marked as an airstrip on any chart – for a climb to say 9,500 on a track slightly East of North, who’d be assisted by the taxi call being made on 126.7?
Any pilot worth his salt, would make the taxi call on the Multicom (and maybe even on the MIA CTAF due its proximity)for the benefit of other traffic that might be at "Sandlewoood Park" and then once airborne and setting course to climb to A095, would make an appropriate b'cast on the area frequency and the MIA CTAF. Thats how it should work, and dare I say until the CASA comment there was no confusion and it worked fine...!
The 'Biggie' doing the SIA from the West would be at around 3000ft at that distance... If conducting an IFR approach maybe a bit lower, but then our mate would not be climbing to A095...