Ex FSO Griffo:
Re your post #51
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?
Does the following phrase ring a bell when aircraft advised Hedland FSC on HF when they were approaching the DBZ (at 20nm) or taxiing within any of the DBZs ?
"ABC traffic DBZ 123.9 is DEF, GHI etc"?
DBZs were implemented
in 1973 at Newman, Tom Price and Paraburdoo to accommodate the large amount of aircraft movements at those aerodromes during the construction of the Port Hedland-Newman railway line and the Tom Price/Paraburdoo-Karratha railway line. A long time before MTAFs, MBZs, CTAF(R)s or CTAFs.
Gee now I am really feeling my age!