When the wireless radio is configured for 802.11ac only, these options display:
Radio Band
Sets the band for the 802.11ac radio which also allows support Band Wide-80 MHz Channel.
Channel
Select a channel:
Auto – Allows the wireless security appliance to automatically detect and set the optimal channel for wireless operation based upon signal strength and integrity. Auto is the default channel setting, and it displays the selected channel of operation to the right. Alternatively, an operating channel within the range of your regulatory domain can be explicitly defined.