Using 3T3R Atheros 802.11n PCIe card in 2T2R mode

[Christophe Prevotaux]

Hi everyone,

I would like to know a few things: 

Is it possible to configure a 3T3R PCIe Atheros based card 
to turn it into a 2T2R equivalent ? ( ie using only 2 antennas and
voiding the use of the 3rd one).

If so how do you do this in FreeBSD ? 

Which version of FreeBSD will support that  ( I guess 10 >)

Any of you have recommendation on a known good card ? 

If there are multiple chipset that can do this I would 
like to know which one.

Regards

Christophe