The satellite system of GAMDSS comprise().
A:NAVTEX, COSPAS/SARSAT, EPIRBs and Status Recording-system
B:Inmarsat,COSPAS/SARSAT, EPIRBs and Status Recording-system
C:NAVTEX, Inmarast,EPIRBs and SART
D:Inmarsat, direct Printing Telegraphy
出自:海船船员证