ECHELON Main Stations 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 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 PINE GAP AUSTRALIA Groundstation CIA 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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Fiber-optic cable networks Fiber-optic cable networks may become the dominant method for high-speed Internet connections. Since the first fiber-optic cable was laid across the Atlantic in 1988, the demand for faster Internet connections is growing, fuelled by the growing network traffic, partly due to increasing implementation of corporate networks spanning the globe and to the use of graphics-heavy contents on the World Wide Web. Fiber-optic cables have not much more in common with copper wires than the capacity to transmit information. As copper wires, they can be terrestrial and submarine connections, but they allow much higher transmission rates. Copper wires allow 32 telephone calls at the same time, but fiber-optic cable can carry 40,000 calls at the same time. A capacity, Alexander Graham Bell might have not envisioned when he transmitted the first words - "Mr. Watson, come here. I want you" - over a copper wire. Copper wires will not come out of use in the foreseeable future because of technologies as DSL that speed up access drastically. But with the technology to transmit signals at more than one wavelength on fiber-optic cables, there bandwidth is increasing, too. For technical information from the Encyclopaedia Britannica on telecommunication cables, click here. For technical information from the Encyclopaedia Britannica focusing on fiber-optic cables, click here. An entertaining report of the laying of the FLAG submarine cable, up to now the longest fiber-optic cable on earth, including detailed background information on the cable industry and its history, Neal Stephenson has written for Wired: Mother Earth Mother Board. Click here for reading. Susan Dumett has written a short history of undersea cables for Pretext magazine, Evolution of a Wired World. Click here for reading. A timeline history of submarine cables and a detailed list of seemingly all submarine cables of the world, operational, planned and out of service, can be found on the Web site of the International Cable Protection Committee. For maps of fiber-optic cable networks see the website of Kessler Marketing Intelligence, Inc. http://www.britannica.com/bcom/eb/article/4/0... http://www.britannica.com/bcom/eb/article/4/0... http://www.wired.com/wired/archive/4.12/ffgla... http://www.pretext.com/mar98/features/story3....

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