D-2
Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide
OL-4211-03
AppendixD Channels, Power Levels, and Antenna Gains
Channels
Channels

IEEE 802.11a

The channel identifiers, channel center frequencies, and regulat ory dom ain s of each IEEE 802 .11a
20-MHz-wide channel are shown in Table D-1 .
Note All channel sets are restricted to indoor usage except America (-A) , which allo ws for i ndoor and outdoor
use on channels 52 through 161 in the United States.
TableD-1 Channels for IEEE 802.11a
Channel
Identifier Frequency
(in MHz)
Regulatory Domains
America (-A) EMEA (-E) Japan (-J) Rest of World
(-W)
34 5170 – – X –
36 5180 X X – X
38 5190 – – X –
40 5200 X X – X
42 5210 – – X –
44 5220 X X – X
46 5230 – – X –
48 5240 X X – X
52 5260 X X – X
56 5280 X X – X
60 5300 X X – X
64 5320 X X – X
100 5500 – X – X
104 5520 – X – X
108 5540 – X – X
112 5560 – X – X
116 5580 – X – X
120 5600 – X – X
124 5620 – X – X
128 5640 – X – X
132 5660 – X – X
136 5680 – X – X
140 5700 – X – X
149 5745 X – – X
153 5765 X – – X
157 5785 X – – X
161 5805 X – – X