signals intelligence

  1. Flyaway

    Buccaneers of the high frontier: Program 989 SIGINT satellites from the ABM hunt to the Falklands War to the space shuttle

    https://thespacereview.com/article/4479/1
  2. Grey Havoc

    HMS Alliance (P417 / S76)

    HMS Alliance was modified for SIGINT/ELINT work during a yard period in the late 1950s (1958-1960), in particular for monitoring the Soviet Northern Fleet, at least according to the Daily Telegraph obituary of Rear Admiral Martin Wemyss linked below...
  3. Flyaway

    The Last Zeppelin Raid 1939

    Actually an early example of a signals intelligence mission: View: https://youtu.be/tfTkgT_XvCc
  4. A Tentative Fleet Plan

    Air Staff Target 9003 Photo-Reconaissance Satellite (Early 1960s)

    Source: Norman Friedman's Seapower and Space p365-366. AST.9003 envisaged satellites orbiting at 200 miles in 97 degree (sun-synchronous) orbits carrying two cameras with television readout, and an ELINT Antenna. Resolution of the cameras would be 25 and 5 yards with swath widths of 45 and 7...
  5. D

    Latest Marjata variant

    Latest variant of the Norwegian Elint vessel Marjata.
  6. Hood

    British Sigint Ship Programme

    Richard J. Aldrich’s recent book ‘GCHQ: An uncensored story of Britain’s most secret intelligence agency’ features some information on the planned Sigint ship of the 1960s. He gives a history elsewhere in the book about the operations of HMS Totem and Turpin in the 1950s. He goes on to say...
  7. bobbymike

    National Security Agency's Exaflop Computer?

    The National Security Agency is designing a new $895.6 million supercomputing center that will be constructed at its Fort Meade, Md., headquarters over the next several years, Department of Defense budget documents reveal. The NSA's new High Performance Computing Center, slated to be complete by...
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