For your 'bunion' LB.....
And before MBZ'z.... there was 'DBZ'.
'Discrete Broadcast Zone'.
Yes. That's right folks ...'DBZ'......The Very First One in OZ.
And, possibly, the ONLY one.
Created in the Pilbara (WA) roughly between Tom Price / Paraburdoo and Newman.
The theory was to get aircraft off the then congested FS freqs of the Pilbara
'of the day', (Mining BOOM!) and talk to each other - on the dedicated DBZ freq.
No, I can't remember what it was. Or even WHEN it WAS....
Does it matter?
Once an aircraft said he/she (not too many 'she' in those days... another thread) said 'changing to DBZ', we did not have to give traffic in the 'Zone' - as far as I can remember.....They gave 'All Stations' and sorted it out themselves.
However, the 'old' ways of 'Duty Of Care' remained in the minds of many a FSO, and not a great deal actually changed...sometimes.
(We were a 'dedicated' bunch)
Now 'desicated'......
Possibly the 'forerunner' of MBZ, CTAF, Mickey Mouse etc....
I just can't be bothered keeping up with these 'silly' acronyms these days.
('Bah Humbug!')
Cheers.....
p.s. Tks again Dick for .....)