5Ghz usage is exploding and as a result more and more vendors are offering the option of adding a software defined radio (SDR) in their APs, enabling administrators to balance the number of 5GHz radios to the number of 5GHz capable clients. From a marketing standpoint this is a great message (ROI and all that stuff) , but what about the technical side? What is the interference concerns with two 5GHz radios in an AP and only inches separating radiating antennas? How much physical and channel separation is preferred/required? What is the impact of different channel widths and even DFS?. This presentation will discuss the RF challenges of Dual 5GHz AP deployments and offer proven best practices from someone who has been designing/deploying dual 5GHz APs for over a decade.