Specifications

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Cisco Aironet Access Point Software Configuration Guide
OL-0657-07
Chapter 3 Configuring the Radio and Basic Settings
Radio Configuration
Default Radio Channel
The factory setting for Cisco wireless LAN systems is Radio Channel 6
transmitting at 2437 MHz. To overcome an interference problem, other channel
settings are available from the drop-down menu of 11 channels ranging from 2412
to 2462 MHz.
Each channel covers 22 MHz. The bandwidth for channels 1, 6, and 11 does not
overlap, so you can set up multiple access points in the same vicinity without
causing interference.
Note Too many access points in the same vicinity creates radio congestion that can
reduce throughput. A careful site survey can determine the best placement of
access points for maximum radio coverage and throughput.
Search for Less-Congested Radio Channel
When you select yes from the Search for less-congested radio channel drop-down
menu, the access point scans for the radio channel that is least busy and selects
that channel for use. The access point scans at power-up and when the radio
settings are changed.
Note If you need to keep the access point assigned to a specific channel to keep from
interfering with other access points, you should leave this setting at no.
Restrict Searched Channels
Click Restrict Searched Channels to limit the channels that the access point
scans when Search for less-congested radio channel is enabled. The AP Radio
Restrict Searched Channels page appears when you click Restrict Searched
Channels. Figure 3-8 shows the AP Radio Restrict Searched Channels page.