NorthStar Navigation Explorer 721US Manuale Utente

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Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual
Appendix D - MMSID and License Information
You must obtain a user MMSID (Marine Mobile Service Identity) and enter it into your radio in order to use 
the DSC functions. Contact the appropriate authorities in your country. If you’re unsure who to contact, 
consult your Northstar dealer.
The user MMSID is a unique nine digit number, similar to a personal telephone number. It is used on marine 
transceivers that are capable of using DSC (Digital Select Calling).
Depending upon your location, you may need a radio station license for the VHF 721. You may also need an 
individual operator’s license. 
Brunswick New Technologies Inc. recommends that you check the requirements of your national radio 
communications authorities before operating DSC functions.