Many thanks to SWLing Post contributor, Jerome van der Linden, who writes:
Have been communicating with Al Kirton (4KZ, Innisfail, Queensland Manager), and by virtue of my membership of a couple of Facebook groups for caravan (trailer to you) owners in Australia, have publicized the fact that Al is keen for reception reports from people in the target area.
Al also advised that they’re not even on 500 watts at the moment:
“We are only on 300 watts due to the fact that we only have one of the two 600 watt RF modules working.(Half of the 600 watts in the good module is lost into the combiner). It should be much better on ~ 1 Kw when the part arrives from the USA and the module is repaired.”
Thank you for the update, Jerome!