CHAYKA

Coordinates: 53°07′51″N 34°54′45″E / 53.13083°N 34.91250°E / 53.13083; 34.91250

Chayka (Russian: Чайка, lit. "seagull") is a Russian terrestrial radio navigation system, similar to LORAN-C. It operates on similar frequencies around 100 kHz, and uses the same techniques of comparing both the envelope and the signal phase to accurately determine location. The systems differ primarily in details.

Chayka, like LORAN-C, uses different pulse repetition frequencies (GRIs) to allow the identification of different stations operating on the same frequencies.

There are 5 Chayka chains in use:

The following Chayka transmitters work with very high power and may use very tall mast antennas (similar to LORAN-C transmitters). The masts at Dudinka and Taymylyr (demolished in 2009) were 460 metres high.

(No longer in service)

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