In my day FS would monitor VHF at one or perhaps two locations and domestic HF. The international high flyers would work international HF from the time they were out of VHF of ATC. At one time the whole of north Australia was on 122.1.
FS away from the J curve only heard the odd high flyer when there was problems with HF. Most FSO's could monitor more than one frequency at the same time and copy the details, both VHF and HF. To my memory, FS never had retransmission - they did not need it as they usually only had one area to look after, except the major FSC's which covered the country FSU's at night time.
Sorry for the thread drift, but this should be about the CASA DP.
