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
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
举一反三
- 66. DSC distress alert should direct to（ ）ln vicinity。 A: all stations B: coast stations C: ship stations nearby D: group of specified stations
- 143. Details of Coast Radio Station and Radar Stations and Read Stations can found in （ ）
- What should be made known in the lists of coast and ship stations? A: the services of the stations open to public correspondence B: the information on charging C: what kind of the public correspondence D: A and B
- 34. Cospas-Sarsat comprises a several near polar orbiting satellites and一． A: a network of land based earth stations B: several coast stations C: an earth station D: some RCCs
- Area A2 is an area. excluding sea area Al. within the coverage of at least one( ) . A: VHF coast station B: MF coast station C: satellite D: RCC