UPDATE (June 2017): Added STL file to print two separate antenna boosters.
Using this antenna booster you will extend the maximum range of the Remote Controller of your DJI Phantom 4 / Phantom 3 or Inspire 1 up to 2-3 times!
All you have to do after 3D printing this booster is to cover the front side of the two reflectors with aluminum or copper adhesive foil.
Thanks to the optimized shape of the reflectors, the electromagnetic waves are focused just along the axis of the antennas.
If you own a Phantom 3 Standard or a Phantom 2, please see the following page:
You can usually get excellent results with the booster covered with aluminium foil, anyway my boosters with copper coating will allow you to reach more distant targets, moreover it can give better results expecially when you pilot your drone in areas with sparse trees and medium size obstacles. In any case, you will be greatly impressed by the improvements that this Range Booster will give to your flights with DJI Phantom or Inspire drones.