On Wednesday, October 26, 2016 2:52:39 PM CEST johnzeng via B.A.T.M.A.N wrote:

Dear Sven :

                 Thanks , and i will try to purchase suitable wifi 

hardware ,

                  Because i use raspberry 

http://www.baidu.com/link?url=s_ofbUc1ZEO-1ohz5A3WnLdqY4CNZ948d7JxBMkwZtW_f jTcOKUwMjkloBUHVW475SCTMxAci7HoEvHeH80Fuz9lC1X4W6Hw4BvwQaUIDzq pi , i have to use wifi card based usb .

                  whether you can advise a set of usb wifi card 

based Atheros ( driver ath9k) ?

After looking at different USB chips, I would also recommend looking into ath9k_htc first. Even if it has limitations, other chips are doing much worse ...

Cheers, Simon