This antenna is used for transmitting FM signals over the entire band. It is ideal to achieve directional patterns. It has a 100 radiation angle and good gain on a wide angle of coverage. Its aluminum construction renders it light and easy to install and very compact for shipping.Specifications:Antenna type: 8 element directional antennaFrequency range: 88-108 MHzBandwidth: 20 MHzImpedance: 50 ohmsConnectors: 7/16 DINPower rating: 2000 watts max.VSWR: 1:4:1 maxPolarization: vertical or horizontalGain: 7.5 dBd (referred to half-wave dipole)Power Gain: 5.62H plane: 78 degrees (half-power)V plane: 52 degrees (half-power)Front-to-back ratio: 13dB min.Lightning protection: all parts groundedMax wind velocity: 100 mph (160 km/h)Wind load: 147 LbsMaterials (external): Aluminum alodyne, Stainless steel bracketMounting: 2-4 inches maxWeight: 33 LbsDimensions: 102″66