1)Dieletric Antenna Center Frequency 1575.42MHz+-3 MHz V.S.W.R 1.5:1 Band Width +-5 MHz Impedance 50 ohm Peak Gain >3dBic Based on 7*7cm ground plane Gain Coverage >-4dBic at -90'<0<+90'(over 75% Volume) Polarization RHCP 2) GSM Antenna Center Frequency 824MHz~960MHz;1710MHz~1990MHz V.S.W.R 2.0:1 Impedance 50 ohm Typical Gain 2dBi+-1dB at 900MHz 1dBi+-1dB at 1800MHz3)LNA/Filter LNA Gain(Without cable) 28dB Typical Noise Figure 1.5dB Filter Out Band Attenuation (f0=1575.42 MHZ) 7dB Min f0 +-20MHZ 20dB Min f0 +-50MHZ 30dB Min f0 +-100MHZ V.S.W.R <2.0 DC Voltage 2.7V/3.0V/3.3V/5.0V/3.0V to 5.0V or other DC current 5mA ,10mA Max 4) Mechanical Size Cable RG174 3 meters or other Connector SMA/SMB/SMC/BNC/FME/TNC/MCX/MMCX Mounting screwing Housing Black 5) Environmental Working Temp -40'C~+85'CVibration Sine sweep 1g(0-p)10~50~10Hz each axis Humidity Humidity95%~100%RH Weatherproof 100%Waterproof