Originally Posted by AZ_Zoner
Thanks badsanta. Do you know anything about the coastal vs. the international mmsi?
The boat's single
MMSI is used in the AIS
tx mode, VHF
and if you have one in the an SSB
capabilities. You can get an MMSI number from the likes of BoatUS in the US, but this MMSI has the following limits:
BoatUS MMSI numbers are coded for recreational vessels cruising in U.S. waters only not otherwise required to be licensed; the registrations are downloaded into the U.S. Coast Guard Search & Rescue Database (MISLE) only. FCC-assigned MMSI numbers are coded for International Waters and go into the International Search & Rescue Database (ITU). In order to be accepted into the ITU database, any FCC assigned MMSI must end in zero. This is why the BoatUS MMSI number cannot be re-used when later applying for an FCC License for international cruising.
If you operate your VHF
outside the US, ie in international waters, then you are required to have an FCC station license. An MMSI number comes with this license.
So, your AIS will function fine with either type of MMSI. If you hit the red emergency
button on your VHF with a BoatUS MMSI while outside the US, the MMSI maybe not be looked up properly and may not be responded to.