With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrTxFreqRangeMin
Cisco Wireless Tx Freq Range Minimum
1.3.6.1.4.1.9.9.136.1.5.1.1.4
This object represents the minimum frequency at which this RF resource can transmit.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrTxFreqRangeMin on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.
