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Parabola offset per 2.4 GHz
Progetto di una parabola offset per 2.4 GHz |
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Antenna ad elica 2,401 Ghz per parabola
Bellissima costruzione di un'antenna ad elica per i 2,401 Ghz per parabola, con 6.5 spire e polarizzazione circolare sinistra. |
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Parabolique Décalée de 80cm Modifiée pour la Rx à 2.4GHz
Parabolique Décalée de 80cm Modifiée pour la Rx à 2.4GHz. Modified 80cm Offset Dish for 2.4GHz Reception.
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Use a Surplus Primestar Dish as an IEEE 802.11 Wireless Networking Antenna
Primestar was recently purchased by Direct TV who is phasing out all the Primestar equipment. This means that the dishes are being trashed, and are available for other uses such as the one I describe here. It is easy to make a surplus Primestar dish |
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Parabola
A parabola (plural "parabolas"; Gray 1997, p. 45) is the set of all points in the plane equidistant from a given line L (the conic section directrix) and a given point F not on the line (the focus). |
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Dishes for Amateurs
Wives call a big 14' dish like this a BUD (Big Ugly Dish). With a bit of effort they can be converted for use on the upper frequencies for EME, Radio Astronomy, and up until the end of January, Amateur satellite use. |