I was looking for a solution for increasing my wifi signal, my laptop have a 10$ web card so I can't expect too much, my device is Qualcomm Atheros AR9485 in some page, they told me that the command
sudo iwconfig wlan0 txpower 20 will be enough to control that signal and it works like a charm but, I'm not sure if is secure using it.
I also checked out the iwconfig manual but it seems like is for electronic engineers so I can't understand it at all, so my questions are simple.
txpower in what scale works(1-100? 1-1000)?, how much power do I need for reaching my router? (is 3 rooms away from me), my web card will melt? According to my web card specs, what is the recommended
txpower signal for me?