6 GHz Channel Allocation and Notation

Because numerous channels are offered on the 6 GHz band, it is a best practice to configure the Preferred Scanning Channel (PSC) so that the amount of probing is kept to a minimum. Preferred channels function as primary channels at each channel width: 20, 40, 80, and 160 MHz.

If you have a choice with indoor APs, using 80 or 160 MHz channel width with PSC is recommended.

For outdoor APs, channel width must be whatever is indicated by the Automatic Frequency Coordination (AFC) server (20, 40, 80, or 160 MHz).

Note

All channels on the 6 GHz band are supported when 20 MHz and 40 MHz are used. It is a best practice to configure Preferred Scanning Channels for faster scanning.