Hellissandur longwave radio mast

The Hellissandur longwave radio mast (Icelandic: Langbylgjustöðin á Gufuskálum [ˈlauŋkˌpɪlcʏˌstœːðɪn au ˈkʏːvʏˌskauːlʏm]) is a 412 m (1,352 ft) tall guyed radio mast used for longwave radio transmissions, and situated at Gufuskálar [ˈkʏːvʏˌskauːlar̥], near Hellissandur on the Snæfellsnes peninsula of Iceland.

Hellissandur longwave radio mast
View of the Hellissandur masts
General information
Status	Completed
Type	Mast radiator insulated against the ground
Location	Hellissandur, Iceland
Coordinates	64°54′26″N 23°55′20″W
Completed	1963
Height	412 m (1,351.71 ft)
Design and construction
Main contractor	US Coast Guard

The mast, which is among the tallest structures in Western Europe, is insulated against the ground, and guyed at five levels by steel ropes, which are subdivided by insulators. It was built in 1963 to replace the 190.5 m (625 ft) tall LORAN-C mast, constructed in 1959 for the North Atlantic LORAN-C chain (GRD 7970).

After the closure of the LORAN-C scheme in 1994, the mast was converted for use by RÚV (The Icelandic National Broadcasting Service) for its longwave transmissions on 189 kHz at a power of 300 kilowatts.

A second, smaller, 30 m (98 ft) tall tower was installed by the US Coast Guard in the autumn of 1961 as part of a LORAN-A network paired with Greenland.