Esky174; HG-831 Outdoor HDTV Antenna with Motor Rotor Frequency: (VHF)40-260MHz VHF Gain: 25&#177;3dB Frequency: (UHF)470-860MHz UHF Gain: 30&#177;3dB Impedance: 75 ohm;Max.Rotation: 360 Degree; Rotating Speed:4-6 rounds/min ;Reception Range:75 miles UHF/VHF All Around Signal Receiving. Built-in High Gain Booster. Built-in Low-Noise Front Amplifier. Remote Controlled All Around Rotating. Strongly Structured And Water Resisting.