I bought my alfa few days ago.
I tried to change the tx-power but it didnt work.
I cant change it more or less 20dbm.

I reintalled atheros firmware, crda, ath9_etc.
changed iw reg to BO, BZ, US;
Nothing worked.

I have installed Kali Linux 2.0 directly on hdd.

Do someone have any ideas how to get it work?