LORAN) radio navigational aid for mariners. The transmitter is at Anthorn. The transmitting aerial uses an auxiliary mast adjacent to the VLF array. Due to the closure of the eLORAN service in Germany and Norway the eLORAN service was discontinued on 31 December 2015. However, the eLoran timing signal is still active to allow for research and support purposes. Antenna system The antenna system consists of thirteen masts, each tall, which are arranged in two rings around the central mast. The VLF antenna consists of four rhombic antennas hung on large insulators on the masts, which are all grounded. The LF antenna is a T-antenna spun between two masts. See also Rugby radio station References Sources External links Russell W. Barnes' page about the wartime history Pictures of Anthorn Information on MSF relocation to Anthorn Press release about MSF relocation to Anthorn The Transmission Gallery: Anthorn Buildings and structures in Cumbria Transmitter sites in England Time signal radio stations NATO installations in the United Kingdom Military installations in England LORAN-C transmitters Military history of Cumbria