Regulating the transmission power of ALFA Network WiFi USB adapters
You can change the computer's country settings as follows:
http://windows.microsoft.com/de-de/windows/change-country-region-setting#1TC=windows-7
Please ensure you comply with the specific transmission power regulations of the country you are in.
Note: Operate the device in Germany only with the "ETSI" zone! According to the regulations in Germany, the transmission power (EIRP) of a WiFi device must not exceed 20 dBm (100mW). Please observe the telecommunications law in your respective country.