H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 367)

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Figure 388 Radio setup
3. Configure the radio as described in Table 113 .
Table 113 Configuration items
Item Description
AP Name Display the selected AP.
Radio Unit Display the selected AP's radios.
Radio Mode Display the selected AP's radio mode.
Transmit Power
Maximum radio transmission power, which varies with country codes,
channels, AP models, radio modes and antenna types. If you adopt the
802.11n mode, the maximum transmit power of the radio also depends on the
bandwidth mode.
Channel
Specify the working channel of the radio, which varies with radio types and
country codes. The working channel list varies with device models.
auto—The working channel is automatically selected. If you select this mode,
the AP checks the channel quality in the WLAN network, and selects the
channel of the best quality as its working channel.
If you modify the working channel configuration, the transmit power is
automatically adjusted.
802.11n The option is available only when the AP supports 802.11n.
bandwidth mode
802.11n can bond two adjacent 20-MHz channels together to form a
40-MHz channel. During data forwarding, the two 20-MHz channels can
work separately with one acting as the primary channel and the other acting
as the secondary channel or work together as a 40-MHz channel. This
provides a simple way of doubling the data rate.
By default, the channel bandwidth of the 802.11n radio (5 GHz) is 40 MHz,
and that of the 802.11n radio (2.4GHz) is 20 MHz.
IMPORTANT:
• If the channel bandwidth of the radio is set to 40 MHz, a 40 MHz channel
is used as the working channel. If no 40 MHz channel is available, a 20
MHz channel is used. For the specifications, see IEEE P802.11n D2.00.
• If you modify the bandwidth mode configuration, the transmit power is
automatically adjusted.
client dot11n-only
If you select the client dot11n-only option, non-802.11n clients are prohibited
from access. If you want to provide access for all 802.11a/b/g clients, you
must disable this function.