1,high gain achieved 2,for receiving all of UHF/VHF/FM 3,durable and easy to install 4,360 degree rotation Model number: SG-654Frequency Range: 45-860MHzReceiving Range : UHF/VHF/FMGain: 22-33dbOut Impedance: 75ΩNoise Figure:≤4dbPower Supply: AC110V/230VTurning Degree: 360