Wpis z mikrobloga

via Wykop Mobilny (Android)
  • 3
@theximon:

The AN/FLR-9 is a type of very large circular "Wullenweber" antenna array, built at eight locations during the cold war for HF/DF direction finding of high priority targets. The worldwide network, known collectively as "Iron Horse", could locate HF communications almost anywhere on Earth. Because of the exceptionally large size of its outer reflecting screen (1056 vertical steel wires supported by 96 120-foot towers), the FLR-9 was commonly referred to