Increase TX power on wifi card

This problems exists couple of months ago
You can not use any more
Code:
iw reg set BO
iwconfig wlan1 txpower 30

instead of this we can simply use another county code

Code:
iw reg set GY
iwconfig wlan1 txpower 30
An explanation about this issue
http://www.blackmoreops.com/2013/10/...ength-of-wifi/

At the end I need to mention that this problem also exist in other Linux distributions, not only in Kali