There are three types of marine radio available.
1. 27 MHz marine
27 MHz marine radios, commonly called 27 'meg', are popular for use on recreational boats and provide short-range communications, but not the range or performance of a VHF radio.
They would be suitable for operating in protected and semi-protected waters or in unprotected waters within the range of a coast station. No operator's licence is required to use a 27 MHz marine radio.
27 MHz marine may be monitored by other recreational vessels or at various locations and hours of operation by Volunteer Marine Rescue radio bases.
For more details visit the Bureau of Meteorology website.
27 MHz Marine radios do not need to be licensed and no operators licence is required to use them.
2. VHF marine
VHF marine transceivers provide better short-range communications than a 27 MHz radio.
They are suitable for operating in protected and semi-protected waters or in unprotected waters within the range of a coast station or a VHF marine repeater station.
VHF channel 16 is monitored 24 hours per day in the Outer Harbor area by Flinders Ports.
- All commercial ships operating at sea are required by law to carry and monitor VHF channel 16.
- VHF channel 16 and repeater channels may be monitored by other recreational vessels, and at various locations and hours of operation by Volunteer Marine Rescue radio bases.
An operator's licence is required to use a VHF marine radio but no licence is needed to have one fitted on your boat.
NOTE: Further information including repeater locations and channels is in the 2011 tide tables book.
3. MF/HF marine
MF/HF marine transceivers offer medium to long-range communications.
Installation of a:
- MF/HF transceiver capable of operating on the HF marine voice distress frequencies is highly recommended where operating in unprotected waters up to 200 nautical miles offshore
- HF DSC (GMDSS compliant) marine transceiver is recommended when vessels operate more than 200 nautical miles offshore.
Services available on HF radio include:
An operator's licence is required to use a MF/HF marine radio and a licence is also required to have one fitted on your boat. The boat will be issued with an official Australian marine radio callsign for use with the MF/HF radio.
On this site
HF marine radios requirements
2011 Tide Tables Book
On other websites
Tide predictions for South Australia Bureau of Meteorology