Marine communications and radio

Other marine information

All marine safety information, excluding weather information, is broken down by eight segments around Australia which have been given the letters A through to H.

These are known as Auscoast Areas or Navarea X.

Marine safety information is broadcast at 25 minutes past the hour as listed in the schedule below in these areas on HF radio 8176 kHz. 

Each HF station broadcasts the warnings for its area plus the ones to either side. 

A Sat-C system instantly receives these warnings as they are issued.

Map of Australia with the ocean separated into sections. 

Adelaide0325 UTC0725 UTCD,E,F
Cairns2325 UTC1225 UTCH,A,B
Darwin0125 UTC0925 UTCG,H,A
Darwin1055 (local)1855 (local)G,H,A
Gladstone2225 UTC1125 UTCA,B,C
Hobart0525 UTC-C,D,E
Melbourne0225 UTC2125 UTCC,D,E
Perth0625 UTC1025 UTCE,F,G
Port Hedland0425 UTC0825 UTCF,G,H
Sydney0025 UTC1325 UTCB,C,D

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Last updated: 07 May 2015

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