Yesterday I installed a NanoStation M2 on another BeWiFi member's roof only a short distance away from the Strathdale node. Unfortunately there are a lot of gumtree's in the immediate vicinity but regardless did a great job at performing some stats.
The node end hosts 3 9dBi Pacific Wireless 120 degree 2.4GHz sectors on 9 metre LMR-400 runs to a MikroTik RouterBOARD equipped with 3 R52n radios. Obviously this is only single stream and each AP on the sector array runs in 20MHz channels.
The NanoStation with it's MIMO antenna and radio setup didn't complain too much. With signals around -55dBm we're seeing air rates of 65Mbps each way. Reportedly the NanoStation has a constant TX CCQ of 100% whilst the RouterBOARD is roughly 70% CCQ. I attribute this to the lack of processing power on the RouterBOARD which will later be replaced with Ubiquiti Bullet M2's or a Ubiquiti Rocket Array when the new 80ft tower is erected.