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15 meters is pretty close to the edge of a typical cell edge in an office environment where MR33 would propagate it signal in a donut shape. That may be your issue, particularly for VoIP. One possible issues you can address:- APs at the ceiling lev...
Short answer is yes. MA-ANT-21 is for 5GHz bandMA-ANT-24 is for 2.4GHz band2x N-Type antenna ports are located at the top of the MR72 and 2x are located at the bottom of the MR72. The pairs of antenna ports each correspond to the 2 client serving rad...