ePMP 3000 AP and dual horns

Products ePMP
9
@Au Wireless wrote:

I have a 3000 AP on a MU-MIMO omni (KP Perf) that is not working as we hoped. I am pretty sure the reason is most of our clients are below the vertical beamwidth of the omni.

So, probably not normally a good idea with an omni but since you seem to only need 180° coverage below the electrical downtilt of the omni... have you considered tilting the Omni ?

So, we are looking at forgetting the MU-MIMO and connecting two RF Element 90 degree horns we have in the warehouse. We would be using these in a 180 degree pattern (non overlapping).

Couple questions:

1) What ports on the 3000 AP will these two antennas connect to?

2) While not MU-MIMO, does the AP act like two APs (one on each antenna)? 

3) How is the bandwidth split between the two non-overlapping horns with a 3000 AP?

Thanks!

According to Cambium Dmitry: (Note, the RF Elements Twin Horn Bracket s is two horns pointing the same direction not two horns 90° off of each other)

https://community.cambiumnetworks.com/t5/ePMP-3000-2000-and-1000/ePMP-3000-with-RF-Elements-Horn/m-p/114681/highlight/true#M18783

1. If you use a pair of horns with the official RF Elements "Twin Horn Bracket" you will not see any MU-MIMO. Although besides MU-MIMO system will work perfectly fine.

2. If you use a pair of horns looking in the different directions you will not see MU-MIMO unless you do the following:

a. Connect one horn to chain 0 and 1, connect second horn to 2 and 3.

b. Update software to 4.5-RC and pick Omni antenna option under the RF settings.

2. If you use a pair of horns looking in the different directions legacy non-11ac subscribers most probably will work with single stream rates.

3. Spectrum analyzer will work only for the chains 2 and 3.

Thanks,

Dmitry

So, I obviously do not get how MU works on the 3k AP. If you connect 0 and 1 to horn pointing North and 2 and 3 to horn pointing South and you have an AC client to the North it will work normally but a N will only see a single stream ? So no MiMO at all for N but AC client still sees 2 streams ? How does that work ?   However looking at what others have posted if you connect North to 0 and 2 and South to 1 and 3  then MiMo works for.. I assume N and AC but no MU ? 

Or am I misunderstanding what is meant by "single stream" ?