China Cheap Glonass external antenna Manufacturers – P/N:FAGPSGLONASS.03,Glonass External Antenna,Gnss active antenna high gain BNC or TNC connector – Fullantenna

Model: FAGPSGlonass.03
（i）Dielectric Antenna
Frequency（MHz）：1575/1602
Center Frequency（MHz）：1590
VSWR：1.5:1
Bandwidth（MHz）：±5
Impedance（Ω）：50
Peak Gain ＞3dBi Based on 7cm×7cm ground plane
Gain Coverage ＞-4dBi at –90°＜0 ＜+90°(over 75% Volume)
Polarization：RHCP
（ii）LNA/Filter
LNA Gain (Without cable) （dBi）：28 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）：11Max
（iii）Mechanical
Weight（gram）＜110
Size（mm）：44.0×35.5×14.0 
Cable Length（m）：2,3 etc.
Connector：SMA/SMB/SMC/BNC/FME/TNC/MCX/MMCX etc.
Mounting：Magnetic base
Housing ：Black
（iv）Environmental
Working Temp：-40℃~+85℃
Storage Temp：-45℃~+100℃
Vibration：Sine sweep 1g(0-p)10~50~10Hz each axis
Humidity：Humidity95%~100%RH
Weatherproof：100%Waterproof

This is a 3V active GPS glonass antenna intended for use with the GPSDO kit used with the USRP N200/N210 Series. The antenna can also be used for the USRP E310, which has an integrated GPS(SMA to SMB adapter needed).  A GPSDO locked to the GPS constellation can provide time synchronization within 50 ns of the global GPS standard and very high clock accuracy.
Small-sized, lightweight, easy mountable & ground-plane independent antenna with built-in LNA & SAW Pre-Filter, comes with 3m RG174 cable and SMA male connector.
Standards: GPS (1575.42 MHz) & GLONASS (1598 – 1606 MHz)
Supply Voltage Range: 1.5 – 3.6 V, high Active Gain 28 dB @2.7V, low power consumption 24.3 mW (typ.)
ESD protected up to 2 kV, dust & waterproof according to IP67
Possible applications: Telematics, Tracking & Tracing where high performance and detachable antenna is required, i.e. on cars, containers, trailers etc.
Note: please ensure antenna top side sees the sky as much as possible.