LORAN-C transmitter Jan Mayen

The LORAN-C transmitter Jan Mayen was a LORAN-C transmission facility on the island of Jan Mayen at 70.91417°N, -8.7325°W. The LORAN-C transmitter Jan Mayen used as antenna a 190-metre high (625 ft) guyed mast.

This mast was built as replacement of a 190.5 metre tall mast, which collapsed in a storm on 8 October 1980 as the result of too low tension on the guy wires. The guywires were adjusted by personnel from the USCG who mixed up pounds and kilograms.

Both transmitters on Jan Mayen, together with the other Norwegian LORAN-C transmitters at Bø, and those at Eiði in the Danish Faroe Islands were shut off at midnight on Dec 31, 2015.