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Summary
| Description |
English: Diagram of an Inverted-L wire shortwave antenna showing parts. The inverted L is used as a transmitting and receiving antenna on the longwave, medium wave and shortwave bands by short wave listeners and radio amateurs. It consists of a wire strung between two supports with insulators at the ends to insulate it from the supports, with a vertical wire attached at one end which drops down and connects to the transmitter or receiver. This example from 1922 also has a lightning grounding switch to attach it to a ground connection during lightning storms for safety. Caption: AN INVERTED L ANTENNA ADJUSTED BETWEEN TWO BUILDINGS It will be seen that there is a pulley adjustment that permits lowering of the antenna; or the tightening of it if it sways in the wind. Alterations to image: Erased parts list from white area and cropped bottom slightly. Français : Schéma d'une antenne à ondes courtes à fil en L inversé montrant des pièces. Le L inversé est utilisé comme une antenne émettrice et réceptrice sur les bandes ondes longues , ondes moyennes et ondes courtes par les auditeurs à ondes courtes et les radioamateurs. Il se compose d'un fil tendu entre deux supports avec des isolateurs aux extrémités pour l'isoler des supports, avec un fil vertical attaché à une extrémité qui tombe et se connecte à l'émetteur ou au récepteur. Cet exemple de 1922 a également un interrupteur de mise à la terre pour l'attacher à une connexion à la terre pendant les orages pour des raisons de sécurité. Légende: ANTENNE L INVERSÉE AJUSTÉE ENTRE DEUX BÂTIMENTS On verra qu'il y a un réglage de la poulie qui permet l'abaissement de l'antenne; ou le resserrement s'il se balance dans le vent.
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| Date | |
| Source | Retrieved from Henry Smith Williams 1922 Practical Radio, Funk and Wagnalls Co., New York, p. 66 on Google Books |
| Author | Henry Smith Williams |
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:04, 29 September 2014 | | 1,676 × 954 (180 KB) | Chetvorno | User created page with UploadWizard |
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