These are the coordinates posted online for RTZ, one of 3 Russian time stations. The odd pattern in the middle of the Siberian wasteland suggests there is much more going on here. Also, the 50kHz transmission doesn't require a large "mast field" installation (like VLF), so this land can't all be transmitter.
Military - Communications
Links: www.irkutsk.com
By: romulusnr