Geographical range significant in case of emergency
Public broadcaster ABC National Radio is again testing in DRM mode A on 747 kHz, from the Broadcast Australia Site at Dockers Plains, Victoria. Although DAB+ is established in the five metro cities the government policy is to retain both AM and FM in order to secure a national and countryside coverage for emergency alert systems (EAS).
There are several hundred medium wave AM stations in Australia for public, community and commercial broadcasting.