Need join to 13th channel via Airport

[howoarang]

Hi, I have problem with my Airport Extreme card to join on WLAN 13th channel (Europe wifi channels 1-13).
My AirPort Extreme Card is "Third-Party Wireless Card" 802.11b/g, chip Broadcom BCM4315 and it supports channels 1,2,3,4,5,6,7,8,9,10,11 only, but I need to join 13th channel.

Can somebody help me? I think, I need some modified driver.
THANKS!