[skissane]

> They are understood not to be. They are generally known to be regionally unique.

Then why aren’t they namespaced? Attach to each code its issuing authority, so it is obvious to the code that DVL@FAA and DVL@EASA are two different things?

Maybe for backward compatibility/ human factors reasons, the code needs to be displayed without the namespace to pilots and air traffic controllers, but it should be a field in the data formats.

[rounce]

Given airport codes are namespaced by ICAO, it seems a bit of an oversight that the same scheme hasn’t been extended to other infrastructure like VORs and waypoints for systems exactly like this one, for cases when uniqueness is required.

[throw0101a]

> […] like VORs and waypoints for systems exactly like this one, for cases when uniqueness is required.

AIUI, most VORs (and in the past, NDBs) are located at airports. And there is an airport at Deauville (DOL/LFRG):

* https://en.wikipedia.org/wiki/Deauville–Normandie_Airport

But the beacon is elsewhere, apparently in some random(?) field:

* https://www.google.com/maps/place/49°18'38.0%22N+0°18'45.0%2...

* https://opennav.com/navaid/FR/DVL/DEAUVILLE+SAINT+GATIEN

[rounce]

There are plenty of navaids that aren’t associated with an airport, there’s probably around a dozen like this just south-east England.

[Moru]

Some history/explanation [1]

[1] https://news.ycombinator.com/item?id=33948915