3Com 3CRWX120695A Installation And Basic Configuration Manual page 73

Configuring Radio-Specific Parameters
The following parameters are specific to individual radios and are not
controlled by a radio profile:
Channel number
Transmit power (in decibels referred to 1 milliwatt)
External antenna model (MP-262, MP-341, and MP-352 802.11b/g
radios only)
These parameters have the following defaults:
Channel number:
The default channel number for 802.11b/g is 6.
The default channel number for 802.11a is the lowest valid
channel number for the country of operation.
Transmit power—Highest setting allowed for the country of operation
or highest setting supported on the hardware, whichever is lower
External antenna model—ANT1180
The channel and power defaults listed above apply only when
RF Auto-Tuning is disabled. RF Auto-Tuning can automatically set and
adjust the channel and power settings on radios. By default,
RF Auto-Tuning for channel assignment is enabled, and RF Auto-Tuning
for power setting is disabled.
You are not required to set any of these radio-specific parameters (except
the external antenna type, if different from the default). RF Auto-Tuning
sets the channels automatically to avoid channel interference, and the
default power levels are high enough for most installations.
If you do need to set the channels or power manually, use the following
commands:
set {ap port-list | dap dap-num} radio {1 | 2}
channel channel-number
set {ap port-list | dap dap-num} radio {1 | 2}
tx-power power-level
To change the external antenna type, use the following command:
Configuring for Authenticating Users 73