BIRD TECHNOLOGIES' 25-A-FFB-30 is a 25 W, A Series, BNC Female – Female, 30 dB bidirectional attenuator.brul liSelf-cooling design, needs no cooling plate./li liFully shielded against production of extraneous radiation./li liRugged construction./li liBroadband operation./li liOther attenuation values available upon request./li liModels to cover all LTE frequencies./li/ul