Wifi Tip 9
It is possible to get a stronger signal using tinfoil, because the tinfoil will rflect the signal into a direction that you want it to and not let it disperse into an unneeded direction. Busting out the Reynold’d wrap will be significant in this case.
Its a very cheap and very effective method to fix a problem that would normally require a comparatively expensive high decibel booster antenna, of course to even make use of the expensive booster antenna you would need to have a router that had removable antenna’s to begin with.
Foil gets around these obstacles. Your homemade parabola will do better than what you can buy in the store.