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PANS-AIM requires for the DME an elevation to be coded. The DME.location will be coded with the ElevatedPoint.elevation attribute.
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Has also the ElevatedPoint.elevation for the Navaid.location be coded? |
Depending on the type of DME, different accuracy is required. In AIXM, the ElevatedPoint.verticalAccuracy attribute is provided for that purpose (according to PANS-AIM Appendix 1, Table A1-5, for DME.type equal-to 'PRECISION' 3m accuracy is required; for all other types it is 30m (100ft)).
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Coding examples can also be found in the Sample AIP Data Set - Specimen (DONLON):
| No. | Description | XPath Expression |
|---|---|---|
NAV-EX-01 VOR-EX-01 DME-EX-01 | VOR/DME | //aixm:NavaidTimeSlice [@gml:id ='NAV_BOR'] | //aixm:VORTimeSlice [@gml:id ='VOR_BOR'] | //aixm:DMETimeSlice [@gml:id ='DME_BOR'] |
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