CHAYKA

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:Short description Script error: No such module "Coordinates". Script error: No such module "Unsubst".Template:Template other

File:Chayka pulse.svg
Chayka pulse

Chayka (Template:Langx, lit. "gull") 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

File:GRI8000.jpg
At the hill – RSDN-3/10, Crimea

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

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Karachev (44 km from Bryansk) Script error: No such module "Coordinates". 450
W/1 Petrozavodsk Script error: No such module "Coordinates". 13217.21 10000 700
X/2 Slonim (Belarus) Script error: No such module "Coordinates". 27125.00 25000 450
Y/3 Simferopol Script error: No such module "Coordinates". 53070.25 50000 550
Z/4 Syzran Script error: No such module "Coordinates". 67941.60 65000 700

GRI 7950

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Alexandrovsk-Sakhalinsky Script error: No such module "Coordinates". 700
W/1 Petropavlovsk-Kamchatsky Script error: No such module "Coordinates". 14506.5 11000 700
X/2 Ussuriysk Script error: No such module "Coordinates". 33678.0 30000 700
Y/3 Tokachibuto (Japan) Script error: No such module "Coordinates". 49104.15 46000 600
Z/4 Okhotsk Script error: No such module "Coordinates". 64102.05 61000 10

GRI 5980

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Petropavlovsk-Kamchatsky Script error: No such module "Coordinates". 700
W/1 Attu Island (United States) Script error: No such module "Coordinates". 14506.5 11000 400
X/2 Alexandrovsk-Sakhalinsky Script error: No such module "Coordinates". 31506.5 28000 700

GRI 5960

(No longer in service)

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Dudinka Script error: No such module "Coordinates". 1200
W/1 Taymylyr Script error: No such module "Coordinates". 1200
X/2 Pankratiev Island Script error: No such module "Coordinates". 250
Y/3 Inta Script error: No such module "Coordinates". 1200

GRI 4970

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Inta Script error: No such module "Coordinates". 1200
W/1 Tumanny Script error: No such module "Coordinates".
X/2 Pankratiev Island Script error: No such module "Coordinates". 250

GRI 5970

# Place Coordinates Emission delay, μs Coding delay, μs Transmission power, kW
M Yuzhno-Uralsk Script error: No such module "Coordinates".
W/1 Yekaterinburg Script error: No such module "Coordinates". 15895,1 15000
X/2 Kurgan Script error: No such module "Coordinates". 30939,5 30000

See also


Template:Asbox

Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=CHAYKA&oldid=3314077"