Specifications

C-4
Cisco Aironet 1200 Series Access Point Installation and Configuration Guide
OL-3446-01
Appendix C Channels and Antenna Settings
Maximum Power Levels
Maximum Power Levels
This section lists the maximum radio power levels and antenna gains for each regulatory domain. For
additional information on setting radio transmit power, refer to the “Configuring Radio Transmit Power”
section on page 7-5.
IEEE 802.11a
An improper combination of power level and antenna gain can result in equivalent isotropic radiated
power (EIRP) above the amount allowed per regulatory domain. Table C-3 lists the maximum power
levels and antenna gains allowed for each IEEE 802.11a regulatory domain.
IEEE 802.11b
An improper combination of power level and antenna gain can result in equivalent isotropic radiated
power (EIRP) above the amount allowed per regulatory domain. Table C-4 lists the maximum power
levels and antenna gains allowed for each IEEE 802.11b regulatory domain.
Table C-3 Maximum Power Levels Per Antenna Gain for IEEE 802.11a
Regulatory Domain
Maximum Power Level (mW)
with 6-dBi Antenna Gain
Americas (-A)
(160 mW EIRP maximum on channels 36-48,
800 mW EIRP maximum on channels 52-64)
40
Japan (-J)
(10 mW/MHz EIRP maximum)
40
Singapore (-S)
(100 mW EIRP maximum)
20
Taiwan (-T)
(800 mW EIRP maximum)
40
Table C-4 Maximum Power Levels Per Antenna Gain for IEEE 802.11b
Regulatory Domain Antenna Gain (dBi) Maximum Power Level (mW)
Americas (-A)
(4W EIRP maximum)
0 100
2.2 100
5.2 100
6 100
8.5 100
12 100
13.5 100