Tsikada (Russian: 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.
- Bernhard Hofmann-Wellenhof, Herbert Lichtenegger, Elmar Wasle, "GNSS – global navigation satellite systems: GPS, GLONASS, Galileo & more", SpringerWienNewYork 2008, p. 5.
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