Symptom
AP1850 seems to work with 3x3 MIMO for 2.4GHz radio.
[show controllers dot11Radio 0 on AP]
Antenna: RX [ a b c ]
TX [ a b c ]
Internal
Antenna Gain: 1. 6dBm 2. 6dBm 3. 6dBm
[show ap config 802.11b on WLC]
802.11n Antennas
A....................................... ENABLED
B....................................... ENABLED
C....................................... ENABLED
D....................................... DISABLED
The AP is powered to work with 802.3at POE.
So, the AP is getting more than 15W power and should work with 3x4.
Conditions
Observed at APs 1850 connected to 802.3at
AP logs will confirm the 802.3at negotiation
