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Line 27: In 1959, the U.S. Navy contracted with [[ITT Corporation\|ITT]] Federal Systems to deploy a worldwide network of [[AN/FRD-10]] HF/DF arrays based on lessons learned from the Bondville experimental array. [[File:Sobe Communications Site.jpg\|thumb\|left\|CDAA at US Navy Sobe Communications base, [[Yomitan]], [[Okinawa Prefecture\|Okinawa]], Japan]] The FRD-10 at NSGA Hanza, Okinawa was the first installed, in 1962, followed by eleven additional arrays, with the last completed in 1964 at NRRF Imperial Beach, CA. (Silver Strand) which was demolished in 2014. Due to their immense size, the ___location of the Bondville array ({{coord\|40.0494\|N\|88.3807\|W\|scale:2000}}) and the other post-war antenna arrays are clearly visible in high-resolution aerial photography now available on the internet.

Circularly disposed antenna array: Difference between revisions