Indoor Remote-controlled Rotating Antenna MA-B2 Feature 1.DVB--T,VHF/UHF full TV signal receieve. 2.Built-in super low noise pre-amplifier 3.Infrared digital remote control 4.AC/DC power supply alternative 5.Gain control SPECIFICATIONS 1.Frequency:40-910MHz 2.Channel:VHF1-12,UHF21-69 3.Gain:VHF25-30dB,UHF32-38dB,DVB25-30dB 4.Impedance:75Ω 5.Voltage:AC220V/DC12V 6.MAX Output Level:145dB 7.Rotation:300 degree 8.Rotating Speed:4-6round/minute 9.Remote control distance:>6M