单项选择题
A.from any Inmarsat satellite B.from any appropriate Navtex and EGC station C.via the satellite the SES is tracking D.from any RCC and coast station
The receiving stations can use the B2 character to（）dif...
单项选择题The receiving stations can use the B2 character to（）different, classes of messages.
A.identify B.Correct C.Reject D.Print out
Navtex transmitter identification character（）is used to...
单项选择题Navtex transmitter identification character（）is used to identify the broadcasts which are to be accepted by the receiver and those are to be rejected.
A.B2 B.B1 C.MAR D.NNN
The difference between international and national Navte...
单项选择题The difference between international and national Navtex Service is limited to（）.
A.frequency allocated B.both language and frequency C.language used D.transmission power and time
