The Bolshakovo transmitter was the most powerful medium-wave transmitting site (AM broadcasting station) in the world located near Bolshakovo, Russia. It was used by Voice of Russia for broadcasting on the medium-wave frequencies 1116 kHz and 1386 kHz with a maximum transmitter power of 2.5 Megawatts. An SV4+4 ARRT-Antenna with eight guyed masts was installed. The masts built in 1974 are 257 meters (843 feet) tall.
On November 1, 2007, Russia ceased using the frequency of 1386 kHz.[1]
However, it is still listed as a shortwave station,[2] and can clearly be heard in the UK transmitting in DRM mode on 6155 kHz between 15:00 UTC and 17:00 UTC on weekdays. This is despite it only apparently radiating 15 kW, and the fact that the UK is around 1700 km (1000 miles) away from the transmitter and 50 - 60 degrees off the advertised beam direction.