Chapter 3 Configuration
Radio Configuration
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Cisco Aironet 1200 Series Access Point Software Configuration Guide
OL-2159-03
Note
If client devices using power-save mode wake up too often when associated to the
access point, increase the data beacon rate setting.
Default Radio Channel
The default channel settings on the radios are the lowest channel numbers for your
regulatory domain. In North America, the default setting for the internal radio is
channel 1 transmitting at 2412 MHz, and the default setting for the radio module
is channel 36 transmitting at 5180 MHz. To overcome interference problems,
other channel settings are available from the radio channel pull-down menus.
The internal radio operates on 11 channels 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.
The radio module operates on eight channels from 5180 to 5320 MHz. Each
channel on the radio module covers 20 MHz, and the bandwidth for the channels
overlaps slightly. For best performance, use channels that are not adjacent (44 and
46, for example) for radios that are close to each other.
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 pull-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
.
