Funkabwehr

The Funkabwehr, "Radio Defence Corps," was a radio counterintelligence organisation created in 1940 by Hans Kopp of the Armed Forces High Command during World War II. It was the principal body for the monitoring of illicit broadcasts. Its formal name was Funkabwehr des Oberkommandos der Wehrmacht () (OKW/WNV/FU). Its most notable breakthrough occurred on 26 June 1941, when tracing teams at the Funkabwehr station at Zelenogradsk discovered the Rote Kapelle, an anti-Nazi resistance movement in Berlin, and two Soviet espionage rings operating in German-occupied Europe and Switzerland during World War II. The Funkabwehr was dissolved on 30 April 1945.

==History== ===Purpose=== left|thumb|200px|Organisational chart of the Funkabwehr from 1941 to 1945 The Radio Defence Corps of the OKW was given the task of picking up and locating by Direction finding (DF) transmitters of secret agents and other clandestine 'underground' transmitters. An underground transmitter was the secret radio station established in enemy-occupied territory. Such a station was charged with passing back to its control station, information of a military, political, or war-industrial nature obtained through espionage. This facilitates the carrying out of pick-up missions. Underground stations also pass traffic relative to the administration and supply of secret organisations and resistance groups. An underground transmitter is usually one of several belonging to a more or less large espionage organisation.