The Ubiquiti ISO-BEAM-620 is compatible with Ubiquiti's PBE-5AC-620 and AF-5G30-S45 antennas. The ISO-BEAM-620 is an accessory designed to protect the antenna surfaces from wind and rain, as well as simultaneously concealing the antenna's feed equipment from public view for a sleeker aesthetic and better antenna security. The ISO-BEAM-620's RF-Choke perimeter also offers excellent noise and interference reduction in co-location deployments, leading to a clearer signal for the attached antenna.