• Source: CHAYKA

Chayka (Russian: Чайка, lit. "seagull") also known as Radiotekhnicheskaya Sistema Dal'ney Navigatsii abbreviated as RSDN (lit. Radio-technology System for Distant Navigation) 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-Chains



Chayka, like LORAN-C, uses different pulse repetition frequencies (Group Repetition Intervals, or GRIs) to allow the identification of different stations operating on the same frequencies.
There are 5 Chayka chains in use:

GRI 8000 — Western (European) Russia Chayka Chain (1969, RSDN-3/10)
GRI 7950 — Eastern Russia Chayka Chain (1986, RSDN-4)
GRI 5980 — Russian-American Chayka Chain (1995)
GRI 5960 — Northern Chayka Chain (1996, RSDN-5)
GRI 4970 — North-Western Chayka Chain
And also North-Caucasian, South-Ural (GRI 5970), Siberian, Angarsk, Sayansk, Transbaikalian, Far East chains deployed on the basis of low-power mobile stations RSDN-10.




Chayka Transmitters


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.




= GRI 8000

=




= GRI 7950

=




= GRI 5980

=




= GRI 5960

=
(No longer in service)




= GRI 4970

=




= GRI 5970

=




See also


LORAN, the Western counterpart of Chayka
Alpha, the Russian counterpart of the Omega Navigation System, still in use as of November 2017.
OMEGA, the Western counterpart of the Alpha Navigation System, no longer in use.
Russian 460 metre radio mast
• Source: Chayka

Chaika or Chayka, the word for seagull in several Slavic languages, may refer to:




People


Chaika (surname), a Slavic surname (including a list of people with the name)
Chaika or Chayka, the call sign for astronaut Valentina Tereshkova




Places


Kiev Chaika Airfield, an airfield in Ukraine
Chayka, Golden Sands, an area within the Golden Sands area, near the city of Varna, Bulgaria
Chayka, Varna, a neighborhood in the city of Varna
Chayka, Varna Province, a village in Provadiya Municipality, Varna Province, Bulgaria.
Chayka, Atyrau, a village in western Kazakhstan




Technology


CHAYKA, a radio navigation system
Chaika (car), an automobile made in the former Soviet Union
Chaika (boat), a type of boat used by the Zaporozhian Cossacks
Chaika (camera), a 35 mm camera made in the former Soviet Union
Chaika watches, a women's brand of watch made in the former Soviet Union
Chaika L-4, a Russian amphibious aircraft
Polikarpov I-153 Chaika, a biplane fighter made by the former Soviet Union
Polikarpov I-15, predecessor of I-153
Beriev Be-12, Soviet amphibious military aircraft




Other uses


1671 Chaika, an asteroid
The Seagull, a play by Anton Chekhov
Chaika - The Coffin Princess, a Japanese light novel and anime series
"Chaika", a 2016 song by Pussy Riot
SC Chaika Petropavlivska Borshchahivka, a Ukrainian football club




See also


Czajka (disambiguation)

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