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DSC Information for Marine VHF Radios

-What is Digital Selective Calling (DSC)?
-Specific information related to Alaska implementation of DSC and Rescue 21
-What kind of Maritime Mobile Service Identity (MMSI) do I need?
-Domestic Only voyages can register for FREE at BoatUS for US and Canadian operation
-MMSI for any vessel operating internationally MUST obtain a Ship Station License
-USCG Rescue 21 coverage in Alaska


-U.S. VHF Channel Information with new channel numbers

AIS Information

-What is the Automatic Identification System (AIS)? and do I need it?
-USCG regulations for AIS carriage on commercial vessels has been updated
-AIS Class A system diagram

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