A、10 minutes every 4 hours
B、half an hour every other hour
C、irregular period of time
D、5 minutes every two hours
更多“A Navtex station in each NAVAREA is usually allowed to have（）for transmission.”相关的问题
A、10 minutes every 4 hours B、half an hour every other hour C、irregular period of time D、5 minutes every two hours
A、be transmitted at once though the frequency is not clear B、be transmitted as soon as the frequency is cleared coordinately C、be transmitted at its scheduled transmissions D、be transmitted at next scheduled transmissions
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
A、from any INMARSAT satellite B、via any appropriate Navtex and EGC station C、via the satellite the MES is tracking D、from any RCC and coast station
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