The AN/FRD-10 Circularly Disposed Antenna Array (CDAA) is a United States Navy circular "Wullenweber" antenna array, built at a number of locations during the cold war for high frequency radio direction finding (HF/DF) and signals intelligence. In the Joint Electronics Type Designation System, FRD stands for fixed ground, radio, direction finding. 14 sites were originally constructed as a … The Wullenweber (the original name introduced by Dr. Hans Rindfleisch was Wullenwever) is a type of Circularly Disposed Antenna Array (CDAA) sometimes referred to as a Circularly Disposed Dipole Array (CDDA). It is a large circular antenna array used for radio direction finding. It was used by the military … See more Origin in World War II Germany Wullenweber technology was developed by the German navy communication research command, Nachrichtenmittelversuchskommando (NVK) and See more • HF/DF • Radio direction finder • Radio direction finding • Direction finding See more • Description and Photographs of the first Wullenwever array in Skisby, Denmark • Aspects of the German Naval Communications Research Establishment • Aerial photographs of Krug arrays See more

AN/FRD-10 - Wikipedia

WebThe behavior to be expected from several variations of an array composed of 35 elements of a CDAA are studied using digital simulation. The number of elements which constitute … Web- Significance: The AN/FRD-10 Circularly Disposed Antenna Array (CDAA) at NCTAMS (Facility 314) was a part of the US' Cold War efforts to gather foreign intelligence … my bell support number

Circular antenna Article about circular antenna by The Free …

WebIt is a large circular antenna array used by the military to triangulate radio signals for radio navigation, intelligence gathering and search and rescue. Because of its immense size and huge circular reflecting screen, the antenna is colloquially known as the elephant cage. WebMay 3, 2013 · The elephant cage or Circularly Disposed Dipole Array ( CDDA ), was circular and was used for spying. Was the elephant cage antenna the predecessor of … WebThe antenna/receiver combination finds particular utility in direct broadcast satellite (DBS) applications for single or dual orthogonal polarizations. The connection between the antenna and receiver may be implemented in stripline/coplanar waveguide, or other known technologies such as microstrip, slotline, and finline. 权利要求 my bell support