Professional active gps Iridium tracker antenna 1616MHz 1626.5MHz high singal with low price

( I ) Product Overview 
(i)GPS Antenna 
Center Frequency(MHz):1575.42±3 
VSWR:1.5:1 
Bandwidth(MHz):±5 
Impedance(Ω):50 
Peak Gain >3dBi Based on 7cmx7cm ground plane 
Gain Coverage >-4dBi at –90°<0 <+90°(over 75% Volume) 
Polarization:RHCP 
LNA Gain(Without Cable) :28 dBi Typical 
Noise Figure(dB):1.5 
Filter Out Band Attenuation (f0=1575.42 MHz) 
7dB Min f0+/-20MHz ; 
20dB Min f0+/-50MHz; 
30dB Min f0+/-100MHz 
VSWR <2.0 
DC Voltage(V): 2.7/3.0/3.3/5.0/3.0 to 5.0 etc. 
DC Current(mA):11 Max 

(ii)Iridium Antenna
Frequency(MHz): 1616-1626 
Impedance(Ω): 50 
Peak Gain >3dBi Based on 7cmx7cm ground plane 
Gain Coverage >-4dBi at -90°<0 <+90°(over 75% Volume) 
( iii )Mechanical 
Weight(gram)<240  
Size(mm): 70x70x14 
Cable GPS(m): RG174 2,5 etc. 
Iridium(m): RG174 2,5 etc. 
Connector GPS: SMA/SMB/SMC/BNC/FME/TNC/MCX/MMCX etc. 
GSM: SMA/SMB/SMC/BNC/FME/TNC/MCX/MMCX etc. 
Mounting:  Screw(Hole/Roof) 
Housing: Black 
( iv )Environmental 
Working Temp: -40'C~+85'C 
Storage Temp: -45'C~+100'C 
Vibration: Sine sweep 1g(0-p)10~50~10Hz each axis 
Humidity: Humidity95%~100%RH 
Weatherproof: 100%Waterproof