Humidity-proof solid structure Easy to install and operate Both remote control all positi-on turn direction Built-in super low noise front-amplifier Two extension antenna with high senitility UHF/VHF Channels receivable Frequency:45-860MHz Gain:28dB-32dB Impedance:75 Ω Max.Rotation:360° Rotating Speed:4 ±0.5 rounds/min Mains Voltage:220/240V~ ±10%50Hz Power:3W