In Internet Archive, HIGH FREQUENCY AS A WEAPON. downloadable or view online Department of Defense. Department of the Air Force. (09/26/1947 - )ARC Identifier 64890 / Local Identifier 342-USAF-13277. Summary: Coverage of high-frequency radio waves for radar jamming used by German military in WW II to interfere with bombing accuracy and to blind British radar when the cruisers Scharnhorst and Gneisenau escaped from the harbor of Brest and ran the English Channel to the North Sea...... Radar Secrets Revealed, 1945/08/20 (1) "Miracle of radar revealed" - ground detectors and direction finders - animation - enemy spotted on oscilloscope - radar antenna on plane can find shoreline or entire convoy - directional equipment on ground can spot enemy and friendly planes - helps plane land safely; (2) Governors Meet Truman - Truman poses with state governors; (3) Day of Days For Orphans - 60 buses bring 3000 orphans in NY to Long Beach; (4) Model Planes Fly 85 MPH - Chicago model plane meet; (5) Gone To The Bow-Wows - Danbury CT annual dog show. (complete newsreel) Target Invisible Illustrates the use of radar on a dramatized mission over Japan. Enjoy!