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CodeFacilityRankingTypeRule
PRIMARYUse for main/normal frequency 
SECONDARY

Use for secondary frequency and also if other terms (stand-by freq, back-up freq, alternate freq) are used in the sense of a secondary

frequency  

frequency

Info
titleAIXM 5.2 Improvements

A change proposal (AIXM-542) for the next AIXM 5.2 version has been approved by the AIXM Change Control Board, which deletes 'SECONDARY' from CodeFacilityRankingType list of values utilised by RadioCommunicationChannel.rank and Service.rank (and its subclasses)

The coding guidelines provided here are aligned with forward/backward conversion rules contained in the AIXM-542 Change Proposal.

  

EMERG

Use for emergency frequency, e.g. 121.500 MHZ (Aeronautical emergency frequency), 123.100 MHZ (Auxiliary frequency (SAR))

GUARDUse if used in the sense of "listening only" frequency, except for emergency frequencies
ALTERNATE
Note
titleNote
Note: Not clear what is the difference between Secondary and Alternate. Has to be raised to AIXM CCB

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