Proper noun
GMDSS
(nautical, aviation) Initialism of Global Maritime Distress and Safety System. (an international set of safety procedures, equipment types, and communication protocols)
On shipboard the computer and satellite linked GMDSS system has largely replaced Morse as a means of communication. Source: Internet
However, since 1999 the use of satellite and very high frequency maritime communications systems ( GMDSS ) has made them obsolete. Source: Internet
LRIT is not part of the GMDSS communication requirements either but its equipment – particularly Inmarsat C or Mini C terminals – can also be used to support the system. Source: Internet