Motorola AP-7131 Product Reference Manual page 196

5-58 AP-7131 Access Point Product Reference Guide
Channel Selection The following channel selection options exist:
User Selected - This is the default setting. If 20/40 MHz is
selected as the Channel Width (supporting 11n), the Secondary
Channel drop-down menu becomes enabled. The user must define
the primary channel first. Then, depending on the primary channel
defined, the secondary channel list is filled with channels making
the combination of primary and secondary channels valid. The
actual channels available depend on regulatory domain
requirements.
Automatic - When the access point is booted, the access point
scans non-overlapping channels listening for beacons from other
access points. After the channels are scanned, it will select the
channel with the fewest access points. In the case of multiple
access points on the same channel, it will select the channel with
the lowest average power level.
The Random option is available for use with the 802.11a/n radio.
To comply with Dynamic Frequency Selection (DFS) requirements in
the European Union, the 802.11a/n radio uses a randomly selected
channel each time the access point is powered on.