Radio jamming in Korea
Radio jamming on the Korean Peninsula makes the border region one of the world's busiest places for radio signals. Medium wave jamming is dominant in the area including Seoul and the Korean Demilitarized Zone (DMZ). South Korea jams all radio and television broadcasts from North Korea.
North Korea jams South Korean state broadcasts and foreign shortwave broadcast services which it believes to be against the North Korean regime. These include the Korean language service of the Free North Korea Radio (which originates from US transmitters in Guam), and several other services and broadcasts. It historically jammed Voice of America and Radio Free Asia until both services shut down in 2025.