ubiquity AC series very full power for at this moment. but we can't use complement test couse it has been removed from country list. But we can edit file in cli example vi /tmp/system.cfg
afther that type:
- cfgmtd -f /tmp/system.cfg -w
- /usr/etc/rc,d/rc.softrestart save
and than we can see in menu wireless setting. but ubnt has been setting up the program if we use 511 (complement test) then channel width automatically become 20Mhz.