Herzogstand Radio Station was a radio communication station built and operated from 1920 to 1946 on the Herzogstand mountain near the Kochelsee in Bavaria, Germany. The plant was conceived by C Lorenz AG to transmit long-wave radio traffic between Germany and the far east, since the existing large radio stations served mainly traffic to the west. From 1930 the mechanism was used by the Technical University of Munich for ionosphere research.