Garage door opener parabola

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Old 12-30-17, 07:21 AM
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Garage door opener parabola

Searching for a way to improve my garage door opener remote range I came across this workshop topic:

https://www.doityourself.com/stry/ho...oor-opener-mod

I can not quite get the assembly for use on my garage door remote antenna. If someone would provide some info on how to assemble I'd greatly appreciate it.
 
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Old 12-30-17, 10:37 AM
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Do you have the external receiver box as shown in that thread ?
Do you have an externally visible antenna wire ?
 
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Old 12-30-17, 11:57 AM
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Thanks for responding. I believe I found my answer. I foolishly thought the graphs were part of the parabola.
 
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Old 12-30-17, 02:51 PM
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Correct, the square graph is so you know if your printer or copier has distorted the image. The squares should be square. You can reduce and enlarge all you want but the squares must remain square in order to create the correct parabolic reflector shape.
 
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