LORAN-C transmitter Lampedusa is the X-Ray secondary station of the Mediterranean Sea LORAN-C Chain ( GRI 7990). It uses a transmission power of 325 kW. The Lampedusa LORAN-C transmitter was situated on the island of Lampedusa at (35°31′21″N12°31′31″E). The Lampedusa LORAN-C transmitter uses as an antenna a 190.5 metre (625 ft) tall mast radiator, which was commissioned in 1972. An Omega monitoring station was also constructed on the base.