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Old Nov 10, 2012, 03:59 AM
Aich is offline
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Joined Nov 2012
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bi-quad awsome

after reading this whole thread yesterday and a trip to maplins i made this 5.8ghz bi-quad





it works although as yet no range testing
i have been getting 450m on cp antennas and immersion long range vtx with fat shark goggles in less than ideal conditions

things that are wrong with my bi-quad
messy solder around post
id like a thinner post anyway this one is 5mm i want 4mm
wire is 0.92mm it should be 0.59mm

i read that the shape of the lobes is unimportant so long as they are symetrical and 1 wavelength, its very hard to make a square of wire this small and keep it to 1 wavelength and equal sides so i think the next one i will make 3/4 circular with small straigts at 90 degrees into the post.

once proved and working with my hexacopter and ground station tracker ill be making one for my control tx 2.4ghz

thanks for this informative thread - im very much inspired

Aitch
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