GPS Active Antenna,GSM Antenna,GPS+GSM Antenna,WIFI Antenna,GPS Passive Antenna,GPS Active navigation Antenna...... Key Specifications/Special Features: GPS/GSM antenna Center frequency: ... Bandwidth: ±5MHz Impedance: 50 Ohms Polarization: RHCP GSM antenna center frequency: 824~894MHZ/1710~1990MHZ 880~960MHZ/1710 ... : 2.0: 1 Impedance: 50 Ohms LNA gain (without cable): 30dB typical Noise figure: 1. ...