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The example below shows the publication of a "ghost frequency" of a DME in ENR 4.1
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Navaid Collocation
A A DME may may be co-located with one and only one one VOR or or NDB. In In this case the corresponding Navaid feature feature will reference the the DME as as navaidEquipment.
In the AIP, collocated VOR and DME Navaids are usually referred to as VOR/DME or DVOR/DME.
There are certain ICAO rules regarding the relative distance between the VOR and the DME, frequency pairing and coded identifier. They are mentioned as coding rules.
A DME (and VOR) may only maintain a single collocation relationship at a time, which means that it is not possible to collocate a VOR with two different DMEs, and vice versa. The same is valid for a DME and NDB collocation.
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A
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For more details see topic Landing Systems & Navaid Collocation.
Navaid Collocation
A DME may be co-located with one and only one VOR or NDB. In this case the corresponding Navaid feature will reference the DME as
In the AIP, collocated VOR and DME Navaids are usually referred to as VOR/DME or DVOR/DME.
There are certain ICAO rules regarding the relative distance between the VOR and the DME, frequency pairing and coded identifier. They are mentioned as coding rules.
A DME (and VOR) may only maintain a single collocation relationship at a time, which means that it is not possible to collocate a VOR with two different DMEs, and vice versa. The same is valid for a DME and NDB collocation.
A particular DME may also be defined as a part (NavaidEquipment) of a Navaid of type 'ILS' or 'MLS'. A single DME can be part of more than one ILS/MLS, but each ILS can have just one assigned DME.
For more details see Landing Systems & Navaid Collocation.
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