Until 1985 Marcus Island LORAN-C transmitter had a 411.5-meter (1,350 ft) tall guyed mast radiator as an antenna, which was built in 1964.

[1][2] In October 1993 the authority over the transmitter was transferred from the United States Coast Guard to the Japan Coast Guard.

In 2000 the tower of the station was again dismantled and replaced by a new one with a height of 213 meters.

Marcus Island LORAN-C transmitter was the X-Ray secondary station of the North West Pacific LORAN-C Chain GRI 8930.

On December 1, 2009, the station was abolished due to a decline in users.