Operator requirements for voluntary stations.

Minimum Operator License Ship Morse telegraph T. Ship direct-printing telegraph MP. Ship telephone, with or without DSC, more than 250 watts carrier power or 1,000 watts peak envelope power PG. Ship telephone, with or without DSC, not more than 250 watts carrier power or 1,000 watts peak envelope power MP. Ship telephone, with or without DSC, not more than 100 watts carrier power or 400 watts peak envelope power Above 30 MHz None. 1 Below 30 MHz RP. Ship earth station RP. 1 RP required for compulsory ships and international voyages. [76 FR 67611, Nov. 2, 2011, as amended at 78 FR 23155, Apr. 18, 2013]