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The Maritime Mobile Service Q Codes are art of a larger set of Q Codes designated by the ITU-R. The QOA–QQZ code range is reserved for the Maritime Mobile Service. This assignment is specified in RECOMMENDATION ITU-R M.1172. Q signals are no longer substantially used in the maritime service.
A vertical service code (VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1] Some vertical service codes require dialing of a telephone number after the code sequence.
The following list shows specific aeronautical transponder codes, and ranges of codes, that have been used for specific purposes in various countries.Traditionally, each country has allocated transponder codes by their own scheme with little commonality across borders.
Sail country codes must comply with World Sailing Racing Rules of Sailing. The Racing Rules of Sailing Appendix G1.2 specifies that national letters shall be clearly legible and of the same color. [1] They must be placed below the class insignias and above the sail number. In 1992, the code system was aligned to the one of IOC and has followed ...
The Federal Stock Number (FSN) was the codification system used by the US Government from 1957 to 1974. It was 11 digits long and was the same number as the NSN (see National Stock Number), minus the two-digit NCB code. The digits "00" were later added in the place of the NCB digits to virtually all FSN numbers to create compliant American 13 ...
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These alphabetic codes are used on FAA and ICAO flight plan forms to aid flight service station (FSS) personnel in their handling of aircraft. On the FAA domestic flight plan form (FAA Form 7233-1) the equipment code is a single character placed in block 3 (Aircraft Type / Special Equipment) as a suffix to the aircraft type code. A single ...