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The location for the NASA Dow Hill Tracking Station was selected in early 1966 and construction of the station began shortly thereafter. The site was situated on the southern tip of the island, approximately fourteen miles southeast of St. Johns, the capital city. The site became operational in November of 1967.

The name chosen for the station is that of an adjacent hill which is famous as a site of some 18th century English naval fortifications.

Because of the location relative to Cape Kennedy, the Antigan station served as a vital link in the Manned Space Flight Network. Its primary role was to track the manned spacecraft while in earth orbit and its secondary function was to provide backup to the 85 foot stations during lunar travel.

The principal electronic systems installed at the Dow Hill station were the Unified S-Band, PCM telemetry, Computers, Spacecraft Air to Ground Communications, Time Standard, High Speed Data Systems and a Microwave link to the Air Force Eastern Test Range Station (AFETR). The AFETR Station, located on the northern end of the island relayed data from Dow Hill to the Goddard Space Flight Center.

The site was closed June 30, 1970.