OmniTik UPA-5HnD for Hotspot Backhold

Hi


1st Question

I want to use the OmniTik UPA-5HnD fand RB750UP for hotspot backhold.
Basicly i want to connect them with mix star dasicy chain topology, How to connect them? Bridged with WDS and STP? or maybe Routing with Station -> Access point configuration?
Your advise is welcome.

2nd Question

Is the OmniTik UPA-5HnD fand RB750UP good for noisy with lots of access point areas? I know it has dual polarity Antennas? Does it help? Did someone try them in this kind of noisy areas? Did it work OK? what was the throuput ?

Thank you.