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Introduction & Background
This topic contains only those PANS-AIM requirements relevant for a VOR. For general PANS-AIM requirements valid for all kind of Radio navigation aids see topic Basic Data for Navaid.
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In case the VOR is assigned to an AirportHeliport (see topic Basic Data for Navaid), the magnetic variation of the VOR has to coincide with that of the related airport/heliport.
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| title | Open question zero bearing direction |
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In some AIPs, also the date (year) when the station declination was measured is published. Unlike for magnetic variation there is no dedicated attribute for station declination contained in AIXM 5. Corresponding information can only be recorded using a Note.
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A VOR (and TACAN) may only maintain a single collocation relationship at a time. In the AIP collocated VOR and TACAN Navaids are usually referred to as VORTAC or DVORTAC, respectively.
For more details see topic topic Landing Systems & Navaid Collocation.
Coding
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Coding Examples
Coding examples can also be found in the DONLON AIXM 5.1.1 AIP data set file AIP Data Set - Specimen (DONLON):
| No. | Description | XPath Expression |
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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'] |
NAV-EX-02 VOR-EX-02 | VOR | //aixm:NavaidTimeSlice [@gml:id ='NAV_EKO'] | //aixm:VORTimeSlice [@gml:id ='NAV_EKO'] |
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