File:T2FD 6kW SSB.png
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Captions
Captions
Folded dipole antenna for HF
Summary
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| Description |
Français : Antenne apériodique de station utilitaire d'une puissance de 6 kW en bande latérale unique. Le symétriseur a un rapport de 16:1, transformant ainsi le coaxial de 50 ohms en une alimentation de 800 Ω à l'antenne. La charge de la résistance est également de 800 Ohms, non inductive. Cela permet à l'impédance de l'antenne d'osciller de 400 à 1600 Ω sur la plage de fréquences prévue et de maintenir ainsi le ROS à l'émetteur entre 1:1 à 2:1. Le rendement électriques est inférieur à 70%, le reste de la puissance est convertie en chaleur dans la résistance R de 800 Ω. C(mètres) = 50/F(MHz), A(mètres) = 3/F(MHz), B = 2 x C, et R = 800 Ω (pour présenter 800 Ω au symétriseur d'un rapport de 16:1). Angle au sol 20 à 40°. Le câble 50 Ω est traversé par une intensité en pointe de 11A et une tension en pointe de 550V. |
| Date | |
| Source | Own work |
| Author | F1jmm |
Licensing
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:29, 19 February 2018 | | 1,483 × 1,249 (285 KB) | F1jmm (talk | contribs) | description |
| 22:11, 19 February 2018 |  | 1,483 × 1,249 (284 KB) | F1jmm (talk | contribs) | User created page with UploadWizard |
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