11 channel to 14 channel

i have mt as a base station which i have about 32 client is connected to it.on client end they all used seano radio and they all work fine but the problem now is the issue of channel on radio i have just 12 channel as europ standard but wanted to change japan standard which has a 14 channel,pl how wiil i go about it.can any body help? thanks for reply fast.

Select Frecuency Mode: Manual tx Power and Country: no country set on the wireless configuration.

Regards

is it a PCMCIA card? you’ll need to flash the firmware to work with 14 chan