GNSS OEM Antenna

GeoRTK Navigation Limited

GA8112 high-precision measurement antenna can receive GPS L1 / L2 / L5, BDS
B1 / B2 / B3, GLONASS L1 / L2, and GALILEO E1 / E2 / E5a / E5b frequencies have good
low-elevation gain, wide-angle circular polarization, and stable phase center. It is
applicable to the field of multi-system and high-precision surveying and mapping, and is
widely used in geodetic surveying, road construction, marine surveying, and terminal
container operations.
GA8112 antenna part adopts a multi-feedpoint design scheme to ensure the coincidence
of the phase center and the geometric center, and the influence of the antenna on the
measurement error is minimized;
GA8112 antenna unit has high gain and directional pattern beam width to ensure the
low-elevation signal reception effect, and it can still search for stars in some occasions
with severe obstruction.


Antenna Specification  
 
Frequency Range
GPS     L1
BDS     B1 GLONASS       G1 GALILEO        E1/E2
GPS     L2/L5 BDS     B2/B3 GLONASS    G2
GALILEO        E5a/E5b
 
Bluetooth
Peak Gain ≥6dBi ≥5dBi 1.5dBi
Polarization RHCP Linear
Impedance 50Ω 50Ω
Azimuth Coverage 360° 360°
Output VSWR ≤1.5 ≤2
Phase Center Error ±2mm /
LNA Specification
Gain 40±2dB  
 
/
Noise Figure ≤2.0dB
Output VSWR ≤2
Operation Voltage 3~5.5V
Operation Current  ≤50mA
Mechanical Specification
Connector MMCX-C-JW1.5 MMCX-C-JW1.5
Dimension                                     φ111x25
Weight                                          ≤190g
Environment Specification
Operating Temperature                                    -40℃~+85℃
Storage Temperature                                    -55℃~+85℃
Humidity                          95 ℃  non-condesing