RT-64 are two radio telescopes in Russia with 64m antenna diameter which are among the largest radio telescopes in the world.

The Bear Lakes RT-64 radio telescope at the Bear Lakes Satellite Communications Center is located in Bear Lakes, Shchyolkovo, near Moscow.^[1] The Kalyazin RT-64 radio telescope at the Kalyazin Radio Astronomy Observatory is located in Kalyazin.^[1]

• RT-70, a larger aperture Russian design.

• Bear Lakes Radio Astronomy Station
• The Soviet/Russian Deep Space Network
• Russian Ground Control Stations
• Don P. Mitchel. Soviet Telemetry Systems. Deep-Space Communication Centers