With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cD11HtPhyOperBand
Cisco DOT11 High-Throughput Physical Operation Band
1.3.6.1.4.1.9.9.607.1.1.2.1.3
This object represents the frequency band an 802.11n radio operates in. The semantics are as follows. 24GHz - The radio operates in the 2.4GHz frequency band. 5GHz - The radio operates in the 5 GHz frequency band.
Back to CISCO-DOT11-HT-PHY-MIB MIB page.
IPHost Network monitor allows you to monitor cD11HtPhyOperBand on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.