Replacing the Broadcom Wifi with the Atheros Wifi card

After opening the router and loosening the builtin broadcom card from the supporting piece of sponge it was easy to remove the WiFi card. I plugged the antenna cable into the Atheros card before placing the card into the  PCI-mini slot, because  otherwise the antenna cable is too short to plug it in sithout using too much force. The tiny plug and socket look rather fragile and I was afraid of breaking it. I plugged the cable in the socket which is the second if counted from the left edge of the card, when the contacts point in your direction.

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I installed the OpenWRT software on the router and enabled WiFi by putting the following lines into the /etc/config/wireless file.

config wifi-device  wifi0
      option type     atheros
      option channel  7
      # REMOVE THIS LINE TO ENABLE WIFI:

config wifi-iface
      option device   wifi0
      option mode     ap
      option ssid     OpenWrt
      option encryption psk2
      option key      XXXXXXXXXXXXXXXXXXX