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ECHELON Main Stations |
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Location
| Country
| Target/Task
| Relations
| MORWENSTOW
| UK
| INTELSAT, Atlantic, Europe, Indian Ocean
| NSA, GCHQ
| SUGAR GROVE
| USA
| INTELSAT, Atlantic, North and South America
| NSA
| YAKIMA FIRING CENTER
| USA
| INTELSAT, Pacific
| NSA
| WAIHOPAI
| NEW ZEALAND
| INTELSAT, Pacific
| NSA, GCSB
| GERALDTON
| AUSTRALIA
| INTELSAT, Pacific
| NSA, DSD
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| MENWITH HILL
| UK
| Sat, Groundstation, Microwave(land based)
| NSA, GCHQ
| SHOAL BAY
| AUSTRALIA
| Indonesian Sat
| NSA, DSD
| LEITRIM
| CANADA
| Latin American Sat
| NSA, CSE
| BAD AIBLING
| GERMANY
| Sat, Groundstation
| NSA
| MISAWA
| JAPAN
| Sat
| NSA
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| PINE GAP
| AUSTRALIA
| Groundstation
| CIA
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| FORT MEADE
| USA
| Dictionary Processing
| NSA Headquarters
| WASHINGTON
| USA
| Dictionary Processing
| NSA
| OTTAWA
| CANADA
| Dictionary Processing
| CSE
| CHELTENHAM
| UK
| Dictionary Processing
| GCHQ
| CANBERRA
| AUSTRALIA
| Dictionary Processing
| DSD
| WELLINGTON
| NEW ZEALAND
| Dictionary Processing
| GCSB Headquarters
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Satellites
Communications satellites are relay stations for radio signals and provide reliable and distance-independent high-speed connections even at remote locations without high-bandwidth infrastructure.
On point-to-point transmission, the transmission method originally employed on, satellites face increasing competition from fiber optic cables, so point-to-multipoint transmission increasingly becomes the ruling satellite technology. Point-to-multipoint transmission enables the quick implementation of private networks consisting of very small aperture terminals (VSAT). Such networks are independent and make mobile access possible.
In the future, satellites will become stronger, cheaper and their orbits will be lower; their services might become as common as satellite TV is today.
For more information about satellites, see How Satellites Work (http://octopus.gma.org/surfing/satellites) and the Tech Museum's satellite site (http://www.thetech.org/hyper/satellite).
http://www.whatis.com/vsat.htm
http://octopus.gma.org/surfing/satellites
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