Specifications

7-7

Cisco Aironet 1200 Series Access Point Installation and Configuration Guide

OL-3446-01

Chapter 7 Configuring Radio Settings

Configuring Radio Channel Settings

The default channel setting for the access point radios is least congested; at startup, the access point

scans for and selects the least-congested channel. For most consistent performance after a site survey,

however, we recomend that you assign a static channel setting for each access point. The channel settings

on your access point correspond to the frequencies available in your regulatory domain. See Appendix C,

“Channels and Antenna Settings,” for the frequencies allowed in your domain.

Each 2.4-GHz channel covers 22 MHz. The bandwidth for channels 1, 6, and 11 does not overlap, so you

can set up multiple access points in the same vicinity without causing interference.

The 5-GHz radio operates on eight channels from 5180 to 5320 MHz. Each channel covers 20 MHz, and

the bandwidth for the channels overlaps slightly. For best performance, use channels that are not adjacent

(44 and 46, for example) for radios that are close to each other.

Note Too many access points in the same vicinity creates radio congestion that can reduce throughput. A

careful site survey can determine the best placement of access points for maximum radio coverage and

throughput.

Beginning in privileged EXEC mode, follow these steps to set the access point’s radio channel:

Command Purpose

Step 1

configure terminal Enter global configuration mode.

Step 2

interface dot11radio { 0 | 1 } Enter interface configuration mode for the radio interface. The

2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.