Copper adhesive tape

I bought this metal adhesive tape in order to test the possibility of improving the WiFi and 3 g signal on some devices. Came pretty tape!

Is a roll of 30 meters with 5 mm wide.

There is a small piece cut and paste.

The adhesive is strong enough, no easy out!

The idea is to find out where the antenna of WiFi or 3 g device and paste a small piece of copper tape around, outside even, by doing so a reflector. There are several videos on the internet where we were able to improve both the WiFi signal as 3 g. I still need to test! For those who want to do some of these experiences, I leave the link to the product in the store Banggood:

http://www.banggood.com/Wholesale-1-Roll-Single-Conductive-Copper-Foil-Tape-5MM-X-30M-p-51736.html