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The MMSI of MRCC Shanghai is:

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A DSC call with the MMSI number 036688811 is:

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A DSC call with the MMSI number 412888111 is likely to:

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What equipment is associated with the land or terrestrial system

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Which equipment may achieve bridge-to-bridge communication?

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Which channel is utilized to the required bridge-to-bridge commu

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Which of the following frequencies is normally used for distress

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How many sidebands are present in the J3E mode in maritime servi

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At mid-day, what would be the best choice in attempting to commu

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ITU channels are:

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