Description: The control mode of radio's channel. Auto means radio chooses the feat channel automatically on the basis of the detectted circumambienceis of the wireless signal in itself; Fixed means radio uses the channel as the configuration of administrator.

Notes: The auto mode is recommended thanks to the changeful working circumambienceis of the radio wireless signal. If it uses the fixed mode, must detect the working circumambienceis of the radio wireless signal for the ap fristly, then choose the feat channel, otherwise the wireless signal maybe coflict and it would make worse to the quality of the communication.