Ubiquiti PowerBeam M PBE-M2-400 Quick Start Manual page 12

5. Select the PowerBeam Dish Reflector size:
a. Click the Wireless tab.
b. F rom the Antenna drop-down list, select the
appropriate option.
c. Click Change to save.
d. Click OK to confirm.
Customize additional settings as needed to complete
the configuration. For additional details on the airOS
Configuration Interface, refer to the User Guide available at
documentation.ubnt.com/airmax