Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.

SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.

Ship-to-ship distress alerting should be conducted by（）.

SOLAS ships shall be equipped with（）.

Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.

Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）

All coast radio stations（）DSC installed for VHF and HF.

Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.

Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.

Before GMDSS, if the radio officer on board is serious ill,（）.