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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-14209-01
Chapter 6 Configuring Radio Settings
Configuring Radio Transmit Power
MCS rates are configured using the speed command. The following example shows a speed setting for
an 802.11n 5-GHz radio:
interface Dot11Radio0
no ip address
no ip route-cache
!
ssid 1250test
!
speed basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4.
m8. m9. m10. m11. m12. m13. m14. m15.
Configuring Radio Transmit Power
Radio transmit power is based on the type of radio or radios installed in your access point and the
regulatory domain in which it operates. To determine what transmit power is available for your access
point and which regulatory domain it operates in, refer to the hardware installation guide for that device.
hardware installation guides are available at cisco.com. Follow these steps to view and download them:
Step 1 Browse to http://www.cisco.com.
Step 2 Click Technical Support & Documentation. A small window appears containing a list of technical
support links.
Step 3 Click Technical Support & Documentation. The Technical Support and Documentation page appears.
Step 4 In the Documentation & Tools section, choose Wireless. The Wireless Support Resources page appears.
20-MHz Channel
Width Data Rate
(Mbps)
40-MHz Channel
Width Data Rate
(Mbps)
20-MHz Channel
Width Data Rate
(Mbps)
40-MHz Channel
Width Data Rate
(Mbps)
5 52 109 57 5/9 120
6 58.5 121.5 65 135
7 65 135 72 2/9 152.5
8 132714 4/930
9 265428 8/960
10 39 81 43 1/3 90
11 52 108 57 7/9 120
12 78 162 86 2/3 180
13 104 216 115 5/9 240
14 117 243 130 270
15 130 270 144 4/9 300
The legacy rates are:
5-GHz: 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
2.4-GHz: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps
Table 6-2 Data Rates Based on MCS Settings, Guard Interval, and Channel Width (continued)
MCS Index Guard Interval = 800ns Guard Interval = 400ns
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