With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrAntennaEntry
Cisco Wireless Antenna Entry
1.3.6.1.4.1.9.9.136.1.10.1.1
This represents one entry in the cwrAntennaTable. This table provides details on the antennas available for use on the local system. It is indexed by cwrAntennaIndex.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrAntennaEntry 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.