Which of the followings belongs to High Frequency bands?
Which of the followings is likely a valid 22-MHz ITU channel?
The MF DSC distress alerting frequency is ______.
DSC distress relays can be transmitted by either ______ or ______.
While at sea, the GMDSS operator received a distress alert on the frequency of 8,414.5 kHz, on which frequency should the radio watch be kept?
What equipment is associated with the land or terrestrial systems?
A DSC call with the MMSI number 016699911 is ______.
A DSC call with the MMSI number 001669991 is ______.
Which of the following is not a DSC watch frequency?
DSC alerts can not be acknowledged via ______.
The MMSI number 003669991 belongs to ______.
Number 412888111, is the MMSI of ______.
Number 036688811, is the MMSI of ______.
The"single-frequency call attempt"is only sent on DSC distress frequency.
DSC distress alert should direct to ______ in vicinity.
