To all the people who are asking "Do all the DIY antenna boosters work the same?", I wish to answer just saying "Basically YES".In fact, the antenna boosters reflect the electromagnetic waves received and transmitted by a remote controller just like the one used by DJI drones Phantom 3 and Inspire 1.
Anyway, some boosters are not optimized to work at the best of their possibilities, in fact the only way to maximize the gain is to reflect and concentrate the waves just along the axes of the antennas. This requires a very accurate design of the booster with a precise shape and an appropiate distance between the reflectors and the antennas.
Another fact that can make the difference is the quality of the aluminium, better if it consists of a single seamless foil and if it has a good thickness.
I have published on Thingiverse.com a "ready to be printed" 3D model of an antenna booster for the last generation of DJI drones:
http://www.thingiverse.com/thing:946565
Anyway, for everyone who don't have a 3D printer, I can sell them a printed and well hand-finished Range Booster ready to use out of the box with an HQ aluminum coating already applied on it (19,00 € + shipping fees).
Phantom 3 / Inspire 1 Range Booster by Giufini
If you need more information, you can contact me at giuseppe.finizia@gmail.com.
Happy flying!
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