... turn off the LED and signal is much better

After upgrading to OpenWRT Kamikadze 8.09RC2 on my Asus 500g Premium (v1) I have changed WiFi MiniPCI card. I have removed the original broadcom and placed Atheros card in. Everything works well (kernel 2.6) but ...

... the wifi signal was much worse than in previous setup (7.09, broadcom). After some googling I have found an answer. Strange but working.

To get better (not excelent) signal, following command has to be used:

sysctl -w dev.wifi0.softled=0

There is some problem i the madwifi driver which brings much better signal, when the LED is turned off.