Mount 2 Antenna Mast Poles at a 90 Degree Angle (Cross or T shape) ^^ Install Additional Antennas on Existing Towers, Masts or Railings with Crossover Clamp ^^ Mount Multiple Antennas (MIMO) Horizontally at the same Vertical Height to Achieve Physical Separation & Spatial Diversity ^^ Add Weather Stations, Lights, Security Cameras or Solar Panels to Outdoor Flag Poles or Posts ^^ Accepts Round or Square Poles from 1.25 to 2 inches in Diameter