by Ubiquiti Employee
on ‎04-21-2015 06:40 PM



I wish I could figure out how to find my old posts on the forum because I addressed this in detail some months ago.  The answer is no.  


The AF radio (in this particular case) uses a Zero IF (ZIF) architecture that has a built-in configurable very high order digital filter for selectivity.  It results in a filter passband that is not realizable through analog means (like airPrism) so there would be no point to it.  The filter inside the AFX platform can adapt to different operating conditions (like interference) and has far more equivalent poles than airPrism.  As has been pointed out, airPrism is a way to improve the relatively modest selectivity associated with standard WiFi chips as used by others. The addition of external analog filters enhances the performance and provides a significant performance benefit.  I hope this makes some sense?