RT-64

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64-m aerial TNA-1500 (RT-64 radio telescope) in Kalyazin.

RT-64 are two radio telescopes in Russia with 64-metre (210 ft) 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 Medvezh'i Ozera, Shchyolkovo, near Moscow. The Kalyazin RT-64 radio telescope at the Kalyazin Radio Astronomy Observatory is located in Kalyazin.

Site	Co-ordinates
Kalyazin	.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}57°13′22″N 37°54′01″E / 57.2228°N 37.9002°E / 57.2228; 37.9002 (Kalyazin RT-64)
Bear Lakes	55°52′05″N 37°57′07″E / 55.8681°N 37.9519°E / 55.8681; 37.9519 (Bear Lakes RT-64)

• RT-70, a larger aperture Russian design.

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• 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

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