Specifications:1) Frequency: 40~862MHz UHF/VHF/FM2) Gain: 28dB~32dB3) Impedance: 75Ω4) Max. rotation: 360°5) Rotating speed: 4 ± 0.5rpm6) Mains voltage: 220/240V~±10% 50Hz7) Power Supply:AC110V/230V 3.5W DC12V/100mA