I have 2 place 2 Sectors side by side on my tower. How close can I actually place them. One of them is dual Pol. airmax.120 deg and 16dbi. connected to mikrotik r52hn.
The other one is F-com 120 deg and 18 dbi single pol. connected to mikrotik r52h.
I would first mount them as far apart as possible and then in wireless conduct a frequency scan, if the other sector has a signal reading of less than -30db then you could have problems with co-location interference, i would suggest a read of posts http://forum.mikrotik.com/t/radio-card-rx-bandwidth/45267/1 http://forum.mikrotik.com/t/better-cpe-better-interference-protection-wanted/47205/1