Digital Selective Calling or DSC is a standard for sending pre-defined digital messages via the medium frequency (MF), high frequency (HF) and very high frequency (VHF) maritime radio systems. It is a core part of the Global Maritime Distress Safety System (GMDSS).
Read more about Digital Selective Calling: Workings, Distress, Other Priorities, Technical Details
Famous quotes containing the words selective and/or calling:
“The selective memory isn’t selective enough.”
—Blake Morrison (b. 1950)
“Those of us who are in this world to educate—to care for—young children have a special calling: a calling that has very little to do with the collection of expensive possessions but has a lot to do with the worth inside of heads and hearts. In fact, that’s our domain: the heads and hearts of the next generation, the thoughts and feelings of the future.”
—Fred M. Rogers, U.S. writer and host of Mr. Rogers Neighborhood. “That Which is Essential Is Invisible to the Eye,” Young Children (July 1994)