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  • Friday, April 13, 2012

    Omega Radio Tower - GUINNESS WORLD RECORD!! - Controlled Demolition

    Omega Tower Site in Trelew Argentina, after the tower domolition.

    Controlled Demolition, Inc. (CDI) of Phoenix, Maryland, USA (acting as Implosion Subcontractor to Tower Inspection, Inc. of Muskogee, Oklahoma), captures a GUINNESS WORLD RECORD for the "Tallest Structure Ever To Be Demolished Using Explosives" in their performance of the successful explosives felling of the 1,201 foot-5 inch tall, structural steel Omega Radio Tower at 5:40 PM on Tuesday, June 23, 1998. http://www.controlled-demolition.com



    The Kaneohe Omega Transmitter, 1987.

    OMEGA was originally developed by the United States Navy for military aviation users. It was approved for development in 1968 with only eight transmitters and the ability to achieve a four mile (6 km) accuracy when fixing a position. Each Omega station transmitted a very low frequency signal which consisted a tone/duration unique to the station that was repeated every ten seconds. By comparing the phases of received signals, and radionavigation principles, an accurate fix of the receiver's position could be calculated. OMEGA employed hyperbolicradionavigation techniques and the chain operated in the VLF portion of the spectrum between 10 to 14 kHz. Near its end, it evolved into a system used primarily by the civil community. By receiving signals from three stations, an Omega receiver could locate a position to within 4 nautical miles (7.4 km) using the principle of phase comparison of signals.[1]

    Omega stations used very extensive antennas in order to transmit their extremely low frequencies. They used grounded or insulated guyed masts with umbrella antennas, or wire-spans across fjords. Some Omega antennas were the tallest constructions on the continent where they stood or still stand.

    Omega Tower Paynesville, Liberia

    When six of the eight station chain became operational in 1971, day-to-day operations were managed by the United States Coast Guard in partnership with ArgentinaNorwayLiberia, andFrance. The Japanese and Australian stations became operational several years later. Coast Guard personnel operated two US stations: one in LaMoureNorth Dakota and the other in Kaneohe,Hawaii on the island of Oahu.

    Due to the success of the Global Positioning System the use of Omega declined during the 1990s, to a point where the cost of operating Omega could no longer be justified. Omega was permanently terminated on September 30, 1997 and all stations ceased operation. Several of the towers were then soon demolished.

    Some of the stations, such as the LaMoure station, are now used for submarine communications.

    More at wikipedia:  http://en.wikipedia.org/wiki/Omega_(navigation_system)