Channel
A: a word that indicates a response is not required
B: a range of frequencies used by a particular station to transmit radio messages
A: a word that indicates a response is not required
B: a range of frequencies used by a particular station to transmit radio messages
举一反三
- What’s meaning of channel A: a word that indicates a response is not required B: a word that indicates a response is required C: a system in which words represent individual letters D: a range of frequencies used by a particular station to transmit radio messages
- 170. Frequencies specified for MSI should be used by A: authorized coast stations to broadcast MSI B: a ship station to report MSI to a public coast station C: a ship station to transmit distress alert D: authorized coast stations to transmit distress acknowledgement
- nulla word that indicates a response is required A: operate B: adio communication C: Ove
- nulla word that indicates a response is not required A: out B: phonetic alphabet C: ove
- 13. How are paired NBDP frequencies normally used? . A: These are normally used for FEC conunurucations with coast radio stations. B: These are normally used for ARQ communications with coast radio stations. C: These are normally used only for distress communications to limit channel interference. D: These are normally used for DSC communications with coast radio stations.