Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-022: MMSI: Mid & Ship Station I.D. Numbers

7-22D1: What is the MID?

Mobile Identification Number

Maritime Indemnity Directory

Mobile Interference Digits

Maritime Identification Digits



7-22D2: How many digits are in the MID (Maritime Identification Digits)?

3

7

9

10



7-22D3: What does the MID (Maritime Identification Digits) signify?

Nationality

Port of registry

Gross tonnage

Passenger vessel



7-22D4: Which of the following numbers indicates a U.S. flag ship station?

338426791

036627934

243537672

003382315



7-22D5: Which of the following MMSI numbers indicates a U.S. flag ship station?

303236824

430326890

033609991

257326819



7-22D6: Which of the following numbers indicates a ship station MMSI?

623944326

003372694

030356328

3384672





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7-A-021: Call Signs & SELCALLS
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Element 7: GMDSS Radio Operating Practices
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7-A-023: MMSI: Group & Coast Station I.D. Numbers