this was an era of rapid repositioning in wireless regulation. balsillie had been engaged as commonwealth wireless expert and offered his "australian wireless" system gratis to the commonwealth. the australian wireless system was evaluated by an independent expert and found to be more efficient than either the marconi system or the telefunken system. the commonwealth promptly swung its support behind the australian wireless system. the first two coastal stations had been contracted to australasian wireless co. but the commonwealth now swiftly proceeded with new stations commencing with melbourne (callsign vim) and hobart (vih). pennant hills (callsign vis) was essentially complete, but the commonwealth would not sign off on "practical completion". australasian wireless co. did not seem entirely unhappy with this system, as it permitted the commercial operations at hotel australia to continue for a longer period than envisaged. finally, on 3 june 1912, the department gave three months notice of cancellation of the commercial licence, stating that if pennant hills was not complete at that time, they would make alternative arrangements. circa 3 september 1912 the aaa equipment was relocated back to underwood st (becoming callsign aty). the "alternative arrangements" alluded to by the pmg were made clear on 10 september 1912 when equipment at pennant hills failed, only a few days after cancellation of the licence and the outage was covered by wireless apparatus at father shaw's wireless factory at randwick, the facility at hotel australia being dismantled.