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Latest news:

New DSC video
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Australia's first purpose-built VHF DSC Coast Station opened

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New VHF marine channels to be introduced
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New standard for DSC and AIS man overboard beacons
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Distinctive number format for VHF handheld radios with DSC
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New identities (numbers) for DSC Man Overboard Devices
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New VHF DSC radio with built in GPS
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How to respond to alerts from VHF DSC man overboard beacons
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US COAST GUARD issues marine safety alert - MARINERS SAFETY ENDANGERED when VHF DSC distress alerts lack identification and location info...
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US FCC bans SC101 VHF DSC radios from March 2011
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New developments in VHF DSC technology

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VHF DSC radios for small boats
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Links:

More info on GMDSS

Australian Coast Radio stations

Australian MMSI application form

Australian MMSI list

Australian marine radio operator qualification info

Australian marine radio licensing info

VHF DSC handbook 

Contact Dunstan and Associates


A marine safety radio system for all mariners


Marine communications changed for ever on February 1, 1999, with the introduction of the Global Maritime Distress and Safety System or GMDSS.

The GMDSS has automated many marine radio functions and processes, particularly those related to distress and safety.

The GMDSS is an amalgam of a number of individual radio systems.  Whilst satellite-based systems do play a part in the GMDSS, ‘normal’ terrestrial radio continues as the primary system for ship-ship and ship-shore communications.

The GMDSS has automated marine radio distress alerting by the use of a technology known as Digital Selective Calling (DSC).
 
This web site has been established to provide a single point resource on DSC, with a particular focus on VHF DSC and its use by recreational boaters.

We explain how DSC works, what you can use it for, and why you should seriously consider fitting it to your boat and/or limited coast station.

What does VHF DSC do?