The UK has a series of doppler radio beacons for aviation navigation. They've been superceded by GPS so there's a rationalisation plan that talks about Dec 2022 as the shut down date. I think that has been delayed.
Either way, some of these stations could be decommissioned some time soon.
e.g.: Brecon File:Brecon DVOR (aircraft navigation beacon) - geograph.org.uk - 88540.jpg - Wikimedia Commons
Either way, some of these stations could be decommissioned some time soon.
e.g.: Brecon File:Brecon DVOR (aircraft navigation beacon) - geograph.org.uk - 88540.jpg - Wikimedia Commons