No 2 is Consol not Consul (that was an aircraft built by Airspeed). They named a whisky after the one in Northern Ireland. That (Bushmills) and Stavanger were still in use early 70s.
A controller at Border Radar called Ray Selkirk reckoned he used to fly from the old Sunderland (Usworth) airfield (now the Nissan factory) to Stavanger by following one of the 'radial' beams, mind you counting the dots must have been a bit time consuming!!
No 4 DECCA nearly had a revival in the mid 80s when someone produced an LCD display which gave you a lat and long position, then suddenly GPS happened. Don't know if any DECCA chains are still radiating but they might be used for nautical purposes.
No 3 I think the US coastguard still maintain some LORAN stations.
No 1 MF Radio Ranges. Not got much experience of these as they were all withdrawn in I think, the late 60s.