Bolshakovo transmitter was the most powerful mediumwave broadcasting station for mediumwave in the world, situated near Bolshakovo, Russia. It was used by Voice of Russia for broadcasting on the mediumwave frequencies 1116 kHz and 1386 kHz with a maximum transmitter power of 2.5 Megawatts. Eight guyed masts equipped with special cage antennas (so-called ARRT-antennas) are installed. The masts, built in 1974, are 257 metres tall.
As of May 2008, it seems that the use of both mentioned frequencies have ceased, and the Bolshakovo station is probably no longer in use for mediumwave.
However, it is still listed as a shortwave station, 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 away from the transmitter and 50 - 60 degrees off the advertised beam direction.
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