 hacker:: [[wilho]]

 description:: DIY variable length yagi / dibole antenna, made of cheap materials

 started:: <<Date(2016-03-07T08:39:19Z)>>
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= Adjustable length yagi / dipole =

== DIY variable length yagi / dipole antenna ==


=== Summary: ===
DIY variable length yagi / dipole antenna, made of cheap materials

=== Goals: ===
 * made something similar than steppir/ultrabeam with fraction of costs
 * first try to make single dipole for 6-20M then 2-3 element 6-20M yagi.
 

=== Project status: ===
 * Planing / prototyping
[[attachment:planing1.jpg|{{attachment:planing1.jpg||width=500}}]]

=== Hardware: ===
 * cheap DC motors with encoder + reducer (http://www.aliexpress.com/snapshot/7317871660.html)
 * empty fishing line spools
 * for actual antenna elements copper wire + strong fishing line 
 * plastic enclosures
 * glass fiber fishing rods (8M rods without last 3M could be quite OK)
 * rasperrypi or some arduino variant
 * PicoBorg Reverse?
 * some microswitches for sensing "end of line"

=== Videos ===
https://youtu.be/Hz8wNOtJ5ZY
=== Pictures ===
https://goo.gl/photos/ncSLy9vy6DSQN5pH8

=== Attachments ===

<<AttachList()>>
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CategoryProjekti
