<strong>Ubiquiti airMAX ac Sector Antenna 5GHz 2x2 MIMO 21dBi 60 Degrees AM-5AC21-60</strong> The Ubiquiti AM-5AC21-60 airMAX Sector is highly resistant to noise interference in co-location deployments. The innovative deflector design, together with the reduced sidelobes and backlobes, reject interference from other transmitters in the area – potentially on the same tower. Improved Signal-to-Noise Ratio (S/N or SNR) allows a higher-order modulation to be used, for example, 256QAM rather than 16QAM. This increases the number of bits per second for a fixed bandwidth (or data rate). Due to innovative design, the airMAX ac Sector Antennas provide higher gain and superior beam performance for high-capacity, multipoint networks. <ul> <li>Advanced Noise Immunity</li> <li>Superior Beam Performance</li> <li>Enhanced Scalability of airMAX Networks</li> </ul> &nbsp;