Have questions about your boat's electronics?
Use this page as a simple, go-to guide to answer your questions.
Have specific questions? Search all the manuals, faqs, forums, and product pages for our products below
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
VHF REFERENCE INFO
-U.S. VHF Channel Information with new channel numbers
Still Need Help?
Contact us about consultation and email/phone support for marine electronic products.