The Australian Maritime Safety Authority (AMSA) is the Commonwealth statutory body with responsibility for establishing and maintaining marine aids to navigation (AtoN) pursuant to section 190 of the Navigation Act 2012 (Cth).
This marine notice provides information on how the automatic channel switching feature in VHF digital selective calling (DSC) radios may impact voice communications during safety critical operations.
This exemption is relevant to owners of certain vessels operating in designated Class C Restricted areas who may not want to obtain a certificate of survey.