Cisco AP541N-A-K9 Administration Guide - Page 86

4 Wireless Modifying Advanced Settings Table 19 Advanced Settings Field Descriptions Field Channel Description The range of available channels is determined by the mode of the wireless radio interface and the country code setting. If you select Auto for the channel setting, and Auto channel is configured, the access point scans available channels, immediately selects a channel and begins operation. If interference or errors occur on that channel, another channel is automatically selected. Channel Bandwidth The channel defines the portion of the wireless radio spectrum the wireless radio uses for transmitting and receiving. Each mode offers a number of channels, depending on how the spectrum is licensed by national and transnational authorities such as the Federal Communications Commission (FCC) or the International Telecommunication Union (ITU-R). This field is available only if the wireless radio mode includes 802.11n. The 802.11n specification allows a 40-MHz-wide channel in addition to the legacy 20-MHz channel available with other modes. The 40-MHz channel enables higher data rates but leaves fewer channels available for use by other 2.4 GHz and 5 GHz devices. Select a value to set the use of the channel bandwidth. The default is 20-MHz. 83 Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide