A. at sea B. on land C. in the air D. Throughout the world
A. 2182KHz B. 156.8MHz C. 2187.5KHz D. 2182.7KHz
A. Because they are not engaged in the distress traffic B. They will affect the transmission of that distress traffic C. The powers of these stations are very weak D. They are not in charge of search and rescue
A. the radio regulations B. the technical terms and definitions C. how to operate the GMDSS SES equipment D. Maritime Communications
A. constructs B. constructed C. has constructed D. was onstructed
A. 2182KHz B. 2174.5KHz C. 2191KHz D. 2187.5KHz
A. routine B. distress C. urgency D. safety
A. determining the position of a distress vessel B. both a and c C. distress communication D. distress alerting and position fixing in Area A4
A. easy and expensive B. simple and certain C. dangerous and stable D. simple and certainly
A. in any INMARSAT regions B. n each NAVTEX area C. at any distance D. in Areas A3 and A4
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