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.

COSPAS-SARSAT is intended to be used for（）.

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

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.

If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.

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

Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.

For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.

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

Radio communication（）for many years and helps to save tens of thousands of lives.