Tropospheric Radio Relay Network North

English Russia can always be relied upon for fine rusty obsolete-tech porn:

The Tropospheric Radio Relay network called Sever (North) is a former Soviet system of communications lines the purpose of which was to provide connection between remote parts of the country. The line is 13 200 km long and consists of 46 Tropospheric Radio Relay Stations (TRRS) located mainly along the coast of the Northern and Pacific Ocean and largest Siberian rivers.

Much more at the link.