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  2. Clearstream - Wikipedia

    en.wikipedia.org/wiki/Clearstream

    Clearstream was founded as "Cedel" (Centrale de Livraison de Valeurs Mobilières) in September 1970 by 66 of the world's major financial institutions as a clearing organisation whose objective was to minimise risk in the settlement of cross-border securities trading, particularly in the growing Eurobond market.

  3. AN/FRD-10 - Wikipedia

    en.wikipedia.org/wiki/AN/FRD-10

    It was laid underground up to the radials in the area between the high and low antennas. [1] Weather proved to be a challenge for the FRD-10 antennas. For example, the antenna at NSGA Winter Harbor had problems due to frost heaving the ground and shifting the reflector screens out of alignment. Digging up the affected poles and replacing them ...

  4. Random wire antenna - Wikipedia

    en.wikipedia.org/wiki/Random_wire_antenna

    Often random wire antennas are also (inaccurately) referred to as long-wire antennas.There is no accepted minimum size, but actual long-wire antennas must be greater than at least a quarter-wavelength (⁠ 1 / 4 ⁠ λ) or perhaps greater than a half (⁠ 1 / 2 ⁠ λ) at the frequency the long wire antenna is used for, and even a half-wave may only be considered "long-ish" rather than "truly ...

  5. Cassegrain antenna - Wikipedia

    en.wikipedia.org/wiki/Cassegrain_antenna

    A beam waveguide antenna is a type of complicated Cassegrain antenna with a long radio wave path to allow the feed electronics to be located at ground level. It is used in very large steerable radio telescopes and satellite ground antennas, where the feed electronics are too complicated and bulky, or requires too much maintenance and alterations, to locate on the dish; for example those using ...

  6. Directional antenna - Wikipedia

    en.wikipedia.org/wiki/Directional_antenna

    Patch antenna gain pattern. A directional antenna or beam antenna is an antenna which radiates or receives greater radio wave power in specific directions. Directional antennas can radiate radio waves in beams, when greater concentration of radiation in a certain direction is desired, or in receiving antennas receive radio waves from one specific direction only.

  7. Euroclear - Wikipedia

    en.wikipedia.org/wiki/Euroclear

    Building at Rue de la Régence 4 in Brussels, former head office of Euroclear Seat of Euroclear Bank in Kraków, Poland. Euroclear acquired Sicovam (the French central securities depository or CSD) in 2001, Necigef (Nederlands Centraal Instituut voor Giraal Effectenverkeer), the Dutch and CRESTCo Ltd, the CSD for UK & Irish securities using the CREST application in 2002.

  8. Television antenna - Wikipedia

    en.wikipedia.org/wiki/Television_antenna

    The antenna is simply plugged into the television receiver and placed conveniently, often on the top of the receiver ("set-top"). Sometimes, the position needs to be experimented with to get the best picture. Indoor antennas can also benefit from RF amplification, commonly called a TV booster.

  9. Parabolic antenna - Wikipedia

    en.wikipedia.org/wiki/Parabolic_antenna

    A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. The most common form is shaped like a dish and is popularly called a dish antenna or parabolic dish. The main advantage of a parabolic antenna is that it has high directivity.