Xtenzi Active GPS antenna For Rosen Entertainment Car Show Navigation Reciver Brand New 5 Meters xtenzi Active GPS Antenna For Rosen entertainment Nav Reciver Active Gain for better signal, # Magnetic Base Super strong polycarbonate radome,Built-in Powerful Low Noise Amplifier Made of strong polycarbonate housing with die-cast steel base plate. Gain=3dB,RHCP,Z=50R, Center Frequency 1575.42MHz3MHz