| Panel | ||
|---|---|---|
| ||
|
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.
...
The VOR shall operate in the band 111.975 MHz to 117.975 MHz. ...The channel separation shall be in increments of 50 kHz referred to the highest assignable frequency.
Position
See topic topic Navaid Position & Elevation.
Station Declination & Zero Bearing Direction
The The VOR.zeroBearingDirection is is used to code the direction of the 'zero bearing' provided by the station. For example: magnetic north ('MAG'), true north ('TRUE').
The angular difference between the direction of the 'zero bearing' indicated by the station and the direction of the True North at the time the VOR station is calibrated is coded by the attribute VOR.declination.
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.
| Info | ||
|---|---|---|
| ||
| If the zero Bearing is True North, the station declination is 0 or not applicable? |
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.
According to PANS-AIM, for VOR the specific station declination should be provided rather than the local magnetic variation. However, in many AIPs the magnetic variation is published instead.
| Tip | ||
|---|---|---|
| ||
The example below shows the station declination of the VOR published.
This example shows that both, the station declination of the VOR and the local magnetic variation and the year when it was measured is published.
|
Operating Authority
See topic topic Operating Authority for Navaid.
Facility Coverage
See topic topic Facility coverage.
For more details see topic
Navaid Collocation
A VOR instance may be collocated with a DME.
...
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 Landing Systems & Navaid Collocation.
Coding
...
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 |
|---|---|---|
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'] |
...