Tsikada (Цикада meaning cicada), is a Russian satellite navigation system including ten Low Earth orbit (LEO) satellites. It transmits the same two carrier frequencies as the U.S. TRANSIT satellite system. The first satellite was launched in 1974. ...
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http://en.wikipedia.org/wiki/Tsikada
The second generation Soviet navigational satellite system; it arose from a collaboration between the Navy, Academy of Sciences, and Ministry of Shipping. The Tsikada system, which was accepted into military services in 1979, provides global navigation for both the Soviet Navy and commercial shippin...
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http://www.daviddarling.info/encyclopedia/T/Tsikada.html
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