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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.
Coding Rules for VOR
For more details see topic Landing Systems & Navaid Collocation.
Coding Rules for VOR
| Identifier | Data Encoding Rule | Justification | Data Verification Rule (UID) | Remarks |
|---|---|---|---|---|
| VOR-101 | The VOR.designator attribute is mandatory. | Minimum AIP data set | AIXM-5.1_RULE-1A3312 | |
| VOR-102 | The VOR.name attribute is mandatory. | Minimum AIP data set | TBD | |
| VOR-103 | The VOR.frequency attribute is mandatory. | Minimum AIP data set | AIXM-5.1_RULE-1A33C0 | |
| VOR-104 | The VOR.zeroBearingIndication attribute is mandatory. | Minimum AIP data set | AIXM-5.1_RULE-1A33C8 | |
| VOR-105 | The VOR.location property is mandatory. | Minimum AIP data set | AIXM-5.1_RULE-1A3328 | |
| VOR-105 | The VOR.declination attribute is mandatory. | PANS-AIM | TBD | |
| VOR-107 | The VOR.designator shall not be duplicated within 600 NM of the location of the VOR. | EAD / ICAO Annex 11 | TBD | |
| VOR-108 | The value of the VOR.frequency must be in the interval '108.000' to '117.975' 'MHz'. | EAD / ICAO Annex 10 | TBD |
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