Could someone please explain to me how the RB52N-M works. Right now I have a ITELITE 5GHz enclosure with a Horizontal and Vertical connection. The enclosure can house an RB411AH, RB433AH or RB600 board. Will I need 2 of the RB52N-M cards for each board to setup a fully functional 2 x 2 MIMO radio, or can I just use 1 of the RB52N-M by using both MMCX connections?
Ohh.Ok.. Does MIMO mean that one antena is V-Pol and the other is H-Pol? Or does MIMO mean both antennas are both H-Pol (or V-Pol)? Does the other side of PtP link need to follow the same scheme? IF YES Does the ITELITE 5GHz enclosure allow adjusting the polarization of antennas? For example rotating one antena so both are of same polarization.
Any thoughts?
MIMO stands for Multiple Input, Multiple Output.
MIMO 2 x 2 works with 2 antenna’s. They CAN be both of the same polarization but better is it to have them cross polorized. So one H-pol and one V-pol antenna. But most domestig ´mimo´ routers use just same pol antenna’s.
It doesn’t matter if the ´other end´ uses the same scheme, like Chain0 for H-Pol and Chain1 for V-Pol. If they are both enabled the units will communicate.
But to be practical and in case one chain might drop and the link has to work on one chain only it is useful to have them both working in the same order.
And yes, to confirm, you only need one mimo card to connect two antenna’s.
What about standards? Does MIMO work only on 802.11n? What about other standards (nstream for example)?
Does MIMO pay’s off? Some experts on this forum say that MIMO can give you 10%-15% max and if you are realy lucky.
MIMO = 802.11n
802.11n works fine with Nv2, about nstreme I don’t know, I believe so but I never worked with nstreme.
802.11a/g has 54Mbps throughput max at 20Mhz bandwidth. 802.11n goes to 150Mbps max. for 20Mhz channel.
802.11n also has some bigger range.
But you actual increase of performance compared to 802.11 depends on lots of factors. Here also the skills of wifi operator comes in place and lots of trying and a bit of luck.