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In case a DME is collocated with a VOR, certain requirements have to be takein into account regarding the frequency pairing. The DME operating channel shall be paired with the VHF channel and/or MLS angle frequency as given in ICAO Annex 10, chapter 3, Table A
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DME type
PANS-AIM does not require the type of the DME to be provided. However, PANS-AIM requires different accuracy values for the elevation of a DME depending on its type. As elevation for the DME i spart of the minimum AIP data set the type has to be known. In AIXM the tye is coded using the DME.type attribute. The typr defines the particular spectrum characteristics or accuracy of the DME. The list of values for the CodeDMEType class contains:
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