Garmin offers communications and Automatic Identification Systems (AIS) designed to enhance convenience and safety for mariners worldwide. All include Digital Selective Calling (DSC), a global protocol that uses channel 70 to transmit and receive digital messages. VHF radios equipped with DSC can send and receive digital emergency messages, private calls and general calls and let you call attention to VHF calls by using stored Maritime Mobile Service Identity (MMSI) numbers. DSC significantly improves the chances of rapid rescue.
