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

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

Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.

The rescue coordination center may（）on stations which interfere with traffic.

Radio beacon can be activated（）in case of distress.

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

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

（）will form the basis for distress alerting and safety calling.

International Navtex service means the coordinated broadcast and automatic reception on（）khz of maritime safety information by narrow-band direct-printing telegraphy using English language.

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