With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cd11IfDomainCapabilityGroup
Cisco DOT11 Interfaces Domain Capability Group
1.3.6.1.4.1.9.9.272.3.2.5
This object class provides the objects necessary to manage the channels and transmit power usable by a radio within its regulatory domain.
Back to CISCO-DOT11-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cd11IfDomainCapabilityGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.