HF - T2FD Antenna
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La T2FD (Terminated Two Wire Folded Dipole Antenna), è un dipolo ripiegato terminato che presenta un carico essenzialmente resistivo e costante su tutto il range operativo.
Questa caratteristica aperiodica permette alla T2FD di operare come antenna multi-banda.
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/i12b38e7af725a49a/version/1444994491/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/id9d69b93dd388909/version/1444994511/image.jpg)
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CONSTRUCTION OF A T2-FD 890 terminated
(resistors and balun are the same for HFS-30
antenna)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/iad725340126d9884/version/1444994803/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/ic8f3f9d9a815d447/version/1444994829/image.jpg)
820 OHMS / 90 W (9 RESISTORS OF 820 OHMS/10W
EACH)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/i5040383d9f7eb7dd/version/1444994891/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/i2d6fe5a8a3dfdcca/version/1444994930/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/iaceaa8cb5e1c8af3/version/1444994945/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/i142a9f0b8a845e61/version/1444994973/image.gif)
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/ice0edf938ced160f/version/1444994982/image.jpg)
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http://www.qrz.com/db/PS7DD/ht%3C/div%3E%3Cdiv%20class=
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ALTRE RESISTENZE PARALLELO
![](https://image.jimcdn.com/app/cms/image/transf/dimension=567x10000:format=jpg/path/s91496787b834ccc3/image/i3035d3d50c40fc8f/version/1445321636/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/ia9e0dc29d1696eba/version/1445321652/image.gif)
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http://www.qsl.net/oz1dgq/home-filer/self%20made%20antenna%20matching.htm#af2
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![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/if450d06e36b23a99/version/1445322289/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/i581d5f24bafa0587/version/1445322302/image.jpg)
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![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/i8ddfe21846793700/version/1445322153/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/ia9dbf5a1abd3c161/version/1445322087/image.jpg)
![](https://image.jimcdn.com/app/cms/image/transf/none/path/s91496787b834ccc3/image/i90c3b456c9b9aa19/version/1445322107/image.jpg)
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http://filipect1ddw.blogspot.it/2012/04/antena-t2fd-w3hh-multibanda-aperiodica.html
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