Kyungsung Broadcasting Station
Kyungsung Broadcasting Station (Kyeongsang Broadcasting Station) is Korea's first wireless broadcasting station, and is the predecessor of Korea Broadcasting Corporation. It was only seven years after the world's first regular radio broadcast (KDKA (AM)) in the United States in 1920, and in the Japanese Empire at that time was the fourth broadcasting station after JOAK, JOBK, and JOCK. On November 30, 1926, the foundation of Kyungsung Broadcasting Corporation was approved, and private radio telephone facilities for broadcasting were authorized on December 9 (Call code JODK, radio wave used: 367m (frequency: 817kHz), antenna power: 1kW) . We began trial broadcasting on January 20, 1927, but changed the radio wave field to 345 m (frequency: 870 kHz) in order to avoid interference with other broadcasting stations and started broadcasting on February 16. The equipment consisted of a UK Marconi 6Q-type broadcast transmitter, four 15kW transformers, three 14kW rechargeable electric generators, and two 6kW transmitter alternators. The first broadcast of Kyungsung broadcasting station was at 1:00 pm. The location of the building was Jungdong 1, Jung-gu, Seoul. In the early days, it was a form of direct transmission from the broadcasting station building.